diff --git a/.hg_archival.txt b/.hg_archival.txt deleted file mode 100644 --- a/.hg_archival.txt +++ /dev/null @@ -1,2 +0,0 @@ -repo: 98941e61c842f8b0ee8011f6a907f7e5f55fe0ac -node: 4dbbbcb8cd83390d15bc5d650b58d11864c92252 diff --git a/.hgtags b/.hgtags deleted file mode 100644 --- a/.hgtags +++ /dev/null @@ -1,3 +0,0 @@ -8320ac5d2e07378ebe7d6568e5d87345dd1bdfe9 0.0.6 -ee15d2bf21e291d48564fa85173f54e65404d5e6 0.0.7 -b87cf92e1808c07f761275eb45fd325ea6126549 1.0 diff --git a/bindings-libusb.cabal b/bindings-libusb.cabal --- a/bindings-libusb.cabal +++ b/bindings-libusb.cabal @@ -3,7 +3,7 @@ homepage: http://bitbucket.org/mauricio/bindings-libusb synopsis: Low level bindings to libusb. -version: 1.1 +version: 1.2 license: BSD3 license-file: LICENSE maintainer: Maurício C. Antunes @@ -28,8 +28,5 @@ Bindings.Libusb.Miscellaneous Bindings.Libusb.PollingAndTiming Bindings.Libusb.Synchronous - include-dirs: - src/include - extra-libraries: - usb-1.0 c-sources: src/inlines.c + pkgconfig-depends: libusb-1.0 >= 1.0 diff --git a/src/include/libusb.h b/src/include/libusb.h deleted file mode 100644 --- a/src/include/libusb.h +++ /dev/null @@ -1,1201 +0,0 @@ -/* - * Public libusb header file - * Copyright (C) 2007-2008 Daniel Drake - * Copyright (c) 2001 Johannes Erdfelt - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef __LIBUSB_H__ -#define __LIBUSB_H__ - -#include -#include -#include -#include -#include - -#define bswap16(x) (((x & 0xff) << 8) | (x >> 8)) -#if __BYTE_ORDER == __LITTLE_ENDIAN -#define libusb_cpu_to_le16(x) (x) -#define libusb_le16_to_cpu(x) (x) -#elif __BYTE_ORDER == __BIG_ENDIAN -#define libusb_le16_to_cpu(x) bswap16(x) -#define libusb_cpu_to_le16(x) bswap16(x) -#else -#error "Unrecognized endianness" -#endif - -/** \def libusb_cpu_to_le16 - * \ingroup misc - * Convert a 16-bit value from host-endian to little-endian format. On - * little endian systems, this function does nothing. On big endian systems, - * the bytes are swapped. - * \param x the host-endian value to convert - * \returns the value in little-endian byte order - */ - -/** \def libusb_le16_to_cpu - * \ingroup misc - * Convert a 16-bit value from little-endian to host-endian format. On - * little endian systems, this function does nothing. On big endian systems, - * the bytes are swapped. - * \param x the little-endian value to convert - * \returns the value in host-endian byte order - */ - -#ifdef __cplusplus -extern "C" { -#endif - -/* standard USB stuff */ - -/** \ingroup desc - * Device and/or Interface Class codes */ -enum libusb_class_code { - /** In the context of a \ref libusb_device_descriptor "device descriptor", - * this bDeviceClass value indicates that each interface specifies its - * own class information and all interfaces operate independently. - */ - LIBUSB_CLASS_PER_INTERFACE = 0, - - /** Audio class */ - LIBUSB_CLASS_AUDIO = 1, - - /** Communications class */ - LIBUSB_CLASS_COMM = 2, - - /** Human Interface Device class */ - LIBUSB_CLASS_HID = 3, - - /** Printer dclass */ - LIBUSB_CLASS_PRINTER = 7, - - /** Picture transfer protocol class */ - LIBUSB_CLASS_PTP = 6, - - /** Mass storage class */ - LIBUSB_CLASS_MASS_STORAGE = 8, - - /** Hub class */ - LIBUSB_CLASS_HUB = 9, - - /** Data class */ - LIBUSB_CLASS_DATA = 10, - - /** Class is vendor-specific */ - LIBUSB_CLASS_VENDOR_SPEC = 0xff, -}; - -/** \ingroup desc - * Descriptor types as defined by the USB specification. */ -enum libusb_descriptor_type { - /** Device descriptor. See libusb_device_descriptor. */ - LIBUSB_DT_DEVICE = 0x01, - - /** Configuration descriptor. See libusb_config_descriptor. */ - LIBUSB_DT_CONFIG = 0x02, - - /** String descriptor */ - LIBUSB_DT_STRING = 0x03, - - /** Interface descriptor. See libusb_interface_descriptor. */ - LIBUSB_DT_INTERFACE = 0x04, - - /** Endpoint descriptor. See libusb_endpoint_descriptor. */ - LIBUSB_DT_ENDPOINT = 0x05, - - /** HID descriptor */ - LIBUSB_DT_HID = 0x21, - - /** HID report descriptor */ - LIBUSB_DT_REPORT = 0x22, - - /** Physical descriptor */ - LIBUSB_DT_PHYSICAL = 0x23, - - /** Hub descriptor */ - LIBUSB_DT_HUB = 0x29, -}; - -/* Descriptor sizes per descriptor type */ -#define LIBUSB_DT_DEVICE_SIZE 18 -#define LIBUSB_DT_CONFIG_SIZE 9 -#define LIBUSB_DT_INTERFACE_SIZE 9 -#define LIBUSB_DT_ENDPOINT_SIZE 7 -#define LIBUSB_DT_ENDPOINT_AUDIO_SIZE 9 /* Audio extension */ -#define LIBUSB_DT_HUB_NONVAR_SIZE 7 - -#define LIBUSB_ENDPOINT_ADDRESS_MASK 0x0f /* in bEndpointAddress */ -#define LIBUSB_ENDPOINT_DIR_MASK 0x80 - -/** \ingroup desc - * Endpoint direction. Values for bit 7 of the - * \ref libusb_endpoint_descriptor::bEndpointAddress "endpoint address" scheme. - */ -enum libusb_endpoint_direction { - /** In: device-to-host */ - LIBUSB_ENDPOINT_IN = 0x80, - - /** Out: host-to-device */ - LIBUSB_ENDPOINT_OUT = 0x00, -}; - -#define LIBUSB_TRANSFER_TYPE_MASK 0x03 /* in bmAttributes */ - -/** \ingroup desc - * Endpoint transfer type. Values for bits 0:1 of the - * \ref libusb_endpoint_descriptor::bmAttributes "endpoint attributes" field. - */ -enum libusb_transfer_type { - /** Control endpoint */ - LIBUSB_TRANSFER_TYPE_CONTROL = 0, - - /** Isochronous endpoint */ - LIBUSB_TRANSFER_TYPE_ISOCHRONOUS = 1, - - /** Bulk endpoint */ - LIBUSB_TRANSFER_TYPE_BULK = 2, - - /** Interrupt endpoint */ - LIBUSB_TRANSFER_TYPE_INTERRUPT = 3, -}; - -/** \ingroup misc - * Standard requests, as defined in table 9-3 of the USB2 specifications */ -enum libusb_standard_request { - /** Request status of the specific recipient */ - LIBUSB_REQUEST_GET_STATUS = 0x00, - - /** Clear or disable a specific feature */ - LIBUSB_REQUEST_CLEAR_FEATURE = 0x01, - - /* 0x02 is reserved */ - - /** Set or enable a specific feature */ - LIBUSB_REQUEST_SET_FEATURE = 0x03, - - /* 0x04 is reserved */ - - /** Set device address for all future accesses */ - LIBUSB_REQUEST_SET_ADDRESS = 0x05, - - /** Get the specified descriptor */ - LIBUSB_REQUEST_GET_DESCRIPTOR = 0x06, - - /** Used to update existing descriptors or add new descriptors */ - LIBUSB_REQUEST_SET_DESCRIPTOR = 0x07, - - /** Get the current device configuration value */ - LIBUSB_REQUEST_GET_CONFIGURATION = 0x08, - - /** Set device configuration */ - LIBUSB_REQUEST_SET_CONFIGURATION = 0x09, - - /** Return the selected alternate setting for the specified interface */ - LIBUSB_REQUEST_GET_INTERFACE = 0x0A, - - /** Select an alternate interface for the specified interface */ - LIBUSB_REQUEST_SET_INTERFACE = 0x0B, - - /** Set then report an endpoint's synchronization frame */ - LIBUSB_REQUEST_SYNCH_FRAME = 0x0C, -}; - -/** \ingroup misc - * Request type bits of the - * \ref libusb_control_setup::bmRequestType "bmRequestType" field in control - * transfers. */ -enum libusb_request_type { - /** Standard */ - LIBUSB_REQUEST_TYPE_STANDARD = (0x00 << 5), - - /** Class */ - LIBUSB_REQUEST_TYPE_CLASS = (0x01 << 5), - - /** Vendor */ - LIBUSB_REQUEST_TYPE_VENDOR = (0x02 << 5), - - /** Reserved */ - LIBUSB_REQUEST_TYPE_RESERVED = (0x03 << 5), -}; - -/** \ingroup misc - * Recipient bits of the - * \ref libusb_control_setup::bmRequestType "bmRequestType" field in control - * transfers. Values 4 through 31 are reserved. */ -enum libusb_request_recipient { - /** Device */ - LIBUSB_RECIPIENT_DEVICE = 0x00, - - /** Interface */ - LIBUSB_RECIPIENT_INTERFACE = 0x01, - - /** Endpoint */ - LIBUSB_RECIPIENT_ENDPOINT = 0x02, - - /** Other */ - LIBUSB_RECIPIENT_OTHER = 0x03, -}; - -#define LIBUSB_ISO_SYNC_TYPE_MASK 0x0C - -/** \ingroup desc - * Synchronization type for isochronous endpoints. Values for bits 2:3 of the - * \ref libusb_endpoint_descriptor::bmAttributes "bmAttributes" field in - * libusb_endpoint_descriptor. - */ -enum libusb_iso_sync_type { - /** No synchronization */ - LIBUSB_ISO_SYNC_TYPE_NONE = 0, - - /** Asynchronous */ - LIBUSB_ISO_SYNC_TYPE_ASYNC = 1, - - /** Adaptive */ - LIBUSB_ISO_SYNC_TYPE_ADAPTIVE = 2, - - /** Synchronous */ - LIBUSB_ISO_SYNC_TYPE_SYNC = 3, -}; - -#define LIBUSB_ISO_USAGE_TYPE_MASK 0x30 - -/** \ingroup desc - * Usage type for isochronous endpoints. Values for bits 4:5 of the - * \ref libusb_endpoint_descriptor::bmAttributes "bmAttributes" field in - * libusb_endpoint_descriptor. - */ -enum libusb_iso_usage_type { - /** Data endpoint */ - LIBUSB_ISO_USAGE_TYPE_DATA = 0, - - /** Feedback endpoint */ - LIBUSB_ISO_USAGE_TYPE_FEEDBACK = 1, - - /** Implicit feedback Data endpoint */ - LIBUSB_ISO_USAGE_TYPE_IMPLICIT = 2, -}; - -/** \ingroup desc - * A structure representing the standard USB device descriptor. This - * descriptor is documented in section 9.6.1 of the USB 2.0 specification. - * All multiple-byte fields are represented in host-endian format. - */ -struct libusb_device_descriptor { - /** Size of this descriptor (in bytes) */ - uint8_t bLength; - - /** Descriptor type. Will have value - * \ref libusb_descriptor_type::LIBUSB_DT_DEVICE LIBUSB_DT_DEVICE in this - * context. */ - uint8_t bDescriptorType; - - /** USB specification release number in binary-coded decimal. A value of - * 0x0200 indicates USB 2.0, 0x0110 indicates USB 1.1, etc. */ - uint16_t bcdUSB; - - /** USB-IF class code for the device. See \ref libusb_class_code. */ - uint8_t bDeviceClass; - - /** USB-IF subclass code for the device, qualified by the bDeviceClass - * value */ - uint8_t bDeviceSubClass; - - /** USB-IF protocol code for the device, qualified by the bDeviceClass and - * bDeviceSubClass values */ - uint8_t bDeviceProtocol; - - /** Maximum packet size for endpoint 0 */ - uint8_t bMaxPacketSize0; - - /** USB-IF vendor ID */ - uint16_t idVendor; - - /** USB-IF product ID */ - uint16_t idProduct; - - /** Device release number in binary-coded decimal */ - uint16_t bcdDevice; - - /** Index of string descriptor describing manufacturer */ - uint8_t iManufacturer; - - /** Index of string descriptor describing product */ - uint8_t iProduct; - - /** Index of string descriptor containing device serial number */ - uint8_t iSerialNumber; - - /** Number of possible configurations */ - uint8_t bNumConfigurations; -}; - -/** \ingroup desc - * A structure representing the standard USB endpoint descriptor. This - * descriptor is documented in section 9.6.3 of the USB 2.0 specification. - * All multiple-byte fields are represented in host-endian format. - */ -struct libusb_endpoint_descriptor { - /** Size of this descriptor (in bytes) */ - uint8_t bLength; - - /** Descriptor type. Will have value - * \ref libusb_descriptor_type::LIBUSB_DT_ENDPOINT LIBUSB_DT_ENDPOINT in - * this context. */ - uint8_t bDescriptorType; - - /** The address of the endpoint described by this descriptor. Bits 0:3 are - * the endpoint number. Bits 4:6 are reserved. Bit 7 indicates direction, - * see \ref libusb_endpoint_direction. - */ - uint8_t bEndpointAddress; - - /** Attributes which apply to the endpoint when it is configured using - * the bConfigurationValue. Bits 0:1 determine the transfer type and - * correspond to \ref libusb_transfer_type. Bits 2:3 are only used for - * isochronous endpoints and correspond to \ref libusb_iso_sync_type. - * Bits 4:5 are also only used for isochronous endpoints and correspond to - * \ref libusb_iso_usage_type. Bits 6:7 are reserved. - */ - uint8_t bmAttributes; - - /** Maximum packet size this endpoint is capable of sending/receiving. */ - uint16_t wMaxPacketSize; - - /** Interval for polling endpoint for data transfers. */ - uint8_t bInterval; - - /** For audio devices only: the rate at which synchronization feedback - * is provided. */ - uint8_t bRefresh; - - /** For audio devices only: the address if the synch endpoint */ - uint8_t bSynchAddress; - - /** Extra descriptors. If libusb encounters unknown endpoint descriptors, - * it will store them here, should you wish to parse them. */ - const unsigned char *extra; - - /** Length of the extra descriptors, in bytes. */ - int extra_length; -}; - -/** \ingroup desc - * A structure representing the standard USB interface descriptor. This - * descriptor is documented in section 9.6.5 of the USB 2.0 specification. - * All multiple-byte fields are represented in host-endian format. - */ -struct libusb_interface_descriptor { - /** Size of this descriptor (in bytes) */ - uint8_t bLength; - - /** Descriptor type. Will have value - * \ref libusb_descriptor_type::LIBUSB_DT_INTERFACE LIBUSB_DT_INTERFACE - * in this context. */ - uint8_t bDescriptorType; - - /** Number of this interface */ - uint8_t bInterfaceNumber; - - /** Value used to select this alternate setting for this interface */ - uint8_t bAlternateSetting; - - /** Number of endpoints used by this interface (excluding the control - * endpoint). */ - uint8_t bNumEndpoints; - - /** USB-IF class code for this interface. See \ref libusb_class_code. */ - uint8_t bInterfaceClass; - - /** USB-IF subclass code for this interface, qualified by the - * bInterfaceClass value */ - uint8_t bInterfaceSubClass; - - /** USB-IF protocol code for this interface, qualified by the - * bInterfaceClass and bInterfaceSubClass values */ - uint8_t bInterfaceProtocol; - - /** Index of string descriptor describing this interface */ - uint8_t iInterface; - - /** Array of endpoint descriptors. This length of this array is determined - * by the bNumEndpoints field. */ - const struct libusb_endpoint_descriptor *endpoint; - - /** Extra descriptors. If libusb encounters unknown interface descriptors, - * it will store them here, should you wish to parse them. */ - const unsigned char *extra; - - /** Length of the extra descriptors, in bytes. */ - int extra_length; -}; - -/** \ingroup desc - * A collection of alternate settings for a particular USB interface. - */ -struct libusb_interface { - /** Array of interface descriptors. The length of this array is determined - * by the num_altsetting field. */ - const struct libusb_interface_descriptor *altsetting; - - /** The number of alternate settings that belong to this interface */ - int num_altsetting; -}; - -/** \ingroup desc - * A structure representing the standard USB configuration descriptor. This - * descriptor is documented in section 9.6.3 of the USB 2.0 specification. - * All multiple-byte fields are represented in host-endian format. - */ -struct libusb_config_descriptor { - /** Size of this descriptor (in bytes) */ - uint8_t bLength; - - /** Descriptor type. Will have value - * \ref libusb_descriptor_type::LIBUSB_DT_CONFIG LIBUSB_DT_CONFIG - * in this context. */ - uint8_t bDescriptorType; - - /** Total length of data returned for this configuration */ - uint16_t wTotalLength; - - /** Number of interfaces supported by this configuration */ - uint8_t bNumInterfaces; - - /** Identifier value for this configuration */ - uint8_t bConfigurationValue; - - /** Index of string descriptor describing this configuration */ - uint8_t iConfiguration; - - /** Configuration characteristics */ - uint8_t bmAttributes; - - /** Maximum power consumption of the USB device from this bus in this - * configuration when the device is fully opreation. Expressed in units - * of 2 mA. */ - uint8_t MaxPower; - - /** Array of interfaces supported by this configuration. The length of - * this array is determined by the bNumInterfaces field. */ - const struct libusb_interface *interface; - - /** Extra descriptors. If libusb encounters unknown configuration - * descriptors, it will store them here, should you wish to parse them. */ - const unsigned char *extra; - - /** Length of the extra descriptors, in bytes. */ - int extra_length; -}; - -/** \ingroup asyncio - * Setup packet for control transfers. */ -struct libusb_control_setup { - /** Request type. Bits 0:4 determine recipient, see - * \ref libusb_request_recipient. Bits 5:6 determine type, see - * \ref libusb_request_type. Bit 7 determines data transfer direction, see - * \ref libusb_endpoint_direction. - */ - uint8_t bmRequestType; - - /** Request. If the type bits of bmRequestType are equal to - * \ref libusb_request_type::LIBUSB_REQUEST_TYPE_STANDARD - * "LIBUSB_REQUEST_TYPE_STANDARD" then this field refers to - * \ref libusb_standard_request. For other cases, use of this field is - * application-specific. */ - uint8_t bRequest; - - /** Value. Varies according to request */ - uint16_t wValue; - - /** Index. Varies according to request, typically used to pass an index - * or offset */ - uint16_t wIndex; - - /** Number of bytes to transfer */ - uint16_t wLength; -}; - -#define LIBUSB_CONTROL_SETUP_SIZE (sizeof(struct libusb_control_setup)) - -/* libusb */ - -struct libusb_context; -struct libusb_device; -struct libusb_device_handle; - -/** \ingroup lib - * Structure representing a libusb session. The concept of individual libusb - * sessions allows for your program to use two libraries (or dynamically - * load two modules) which both independently use libusb. This will prevent - * interference between the individual libusb users - for example - * libusb_set_debug() will not affect the other user of the library, and - * libusb_exit() will not destroy resources that the other user is still - * using. - * - * Sessions are created by libusb_init() and destroyed through libusb_exit(). - * If your application is guaranteed to only ever include a single libusb - * user (i.e. you), you do not have to worry about contexts: pass NULL in - * every function call where a context is required. The default context - * will be used. - * - * For more information, see \ref contexts. - */ -typedef struct libusb_context libusb_context; - -/** \ingroup dev - * Structure representing a USB device detected on the system. This is an - * opaque type for which you are only ever provided with a pointer, usually - * originating from libusb_get_device_list(). - * - * Certain operations can be performed on a device, but in order to do any - * I/O you will have to first obtain a device handle using libusb_open(). - * - * Devices are reference counted with libusb_device_ref() and - * libusb_device_unref(), and are freed when the reference count reaches 0. - * New devices presented by libusb_get_device_list() have a reference count of - * 1, and libusb_free_device_list() can optionally decrease the reference count - * on all devices in the list. libusb_open() adds another reference which is - * later destroyed by libusb_close(). - */ -typedef struct libusb_device libusb_device; - - -/** \ingroup dev - * Structure representing a handle on a USB device. This is an opaque type for - * which you are only ever provided with a pointer, usually originating from - * libusb_open(). - * - * A device handle is used to perform I/O and other operations. When finished - * with a device handle, you should call libusb_close(). - */ -typedef struct libusb_device_handle libusb_device_handle; - -/** \ingroup misc - * Error codes. Most libusb functions return 0 on success or one of these - * codes on failure. - */ -enum libusb_error { - /** Success (no error) */ - LIBUSB_SUCCESS = 0, - - /** Input/output error */ - LIBUSB_ERROR_IO = -1, - - /** Invalid parameter */ - LIBUSB_ERROR_INVALID_PARAM = -2, - - /** Access denied (insufficient permissions) */ - LIBUSB_ERROR_ACCESS = -3, - - /** No such device (it may have been disconnected) */ - LIBUSB_ERROR_NO_DEVICE = -4, - - /** Entity not found */ - LIBUSB_ERROR_NOT_FOUND = -5, - - /** Resource busy */ - LIBUSB_ERROR_BUSY = -6, - - /** Operation timed out */ - LIBUSB_ERROR_TIMEOUT = -7, - - /** Overflow */ - LIBUSB_ERROR_OVERFLOW = -8, - - /** Pipe error */ - LIBUSB_ERROR_PIPE = -9, - - /** System call interrupted (perhaps due to signal) */ - LIBUSB_ERROR_INTERRUPTED = -10, - - /** Insufficient memory */ - LIBUSB_ERROR_NO_MEM = -11, - - /** Operation not supported or unimplemented on this platform */ - LIBUSB_ERROR_NOT_SUPPORTED = -12, - - /** Other error */ - LIBUSB_ERROR_OTHER = -99, -}; - -/** \ingroup asyncio - * Transfer status codes */ -enum libusb_transfer_status { - /** Transfer completed without error. Note that this does not indicate - * that the entire amount of requested data was transferred. */ - LIBUSB_TRANSFER_COMPLETED, - - /** Transfer failed */ - LIBUSB_TRANSFER_ERROR, - - /** Transfer timed out */ - LIBUSB_TRANSFER_TIMED_OUT, - - /** Transfer was cancelled */ - LIBUSB_TRANSFER_CANCELLED, - - /** For bulk/interrupt endpoints: halt condition detected (endpoint - * stalled). For control endpoints: control request not supported. */ - LIBUSB_TRANSFER_STALL, - - /** Device was disconnected */ - LIBUSB_TRANSFER_NO_DEVICE, - - /** Device sent more data than requested */ - LIBUSB_TRANSFER_OVERFLOW, -}; - -/** \ingroup asyncio - * libusb_transfer.flags values */ -enum libusb_transfer_flags { - /** Report short frames as errors */ - LIBUSB_TRANSFER_SHORT_NOT_OK = 1<<0, - - /** Automatically free() transfer buffer during libusb_free_transfer() */ - LIBUSB_TRANSFER_FREE_BUFFER = 1<<1, - - /** Automatically call libusb_free_transfer() after callback returns. - * If this flag is set, it is illegal to call libusb_free_transfer() - * from your transfer callback, as this will result in a double-free - * when this flag is acted upon. */ - LIBUSB_TRANSFER_FREE_TRANSFER = 1<<2, -}; - -/** \ingroup asyncio - * Isochronous packet descriptor. */ -struct libusb_iso_packet_descriptor { - /** Length of data to request in this packet */ - unsigned int length; - - /** Amount of data that was actually transferred */ - unsigned int actual_length; - - /** Status code for this packet */ - enum libusb_transfer_status status; -}; - -struct libusb_transfer; - -typedef void (*libusb_transfer_cb_fn)(struct libusb_transfer *transfer); - -/** \ingroup asyncio - * The generic USB transfer structure. The user populates this structure and - * then submits it in order to request a transfer. After the transfer has - * completed, the library populates the transfer with the results and passes - * it back to the user. - */ -struct libusb_transfer { - /** Handle of the device that this transfer will be submitted to */ - libusb_device_handle *dev_handle; - - /** A bitwise OR combination of \ref libusb_transfer_flags. */ - uint8_t flags; - - /** Address of the endpoint where this transfer will be sent. */ - unsigned char endpoint; - - /** Type of the endpoint from \ref libusb_transfer_type */ - unsigned char type; - - /** Timeout for this transfer in millseconds. A value of 0 indicates no - * timeout. */ - unsigned int timeout; - - /** The status of the transfer. Read-only, and only for use within - * transfer callback function. - * - * If this is an isochronous transfer, this field may read COMPLETED even - * if there were errors in the frames. Use the - * \ref libusb_iso_packet_descriptor::status "status" field in each packet - * to determine if errors occurred. */ - enum libusb_transfer_status status; - - /** Length of the data buffer */ - int length; - - /** Actual length of data that was transferred. Read-only, and only for - * use within transfer callback function. Not valid for isochronous - * endpoint transfers. */ - int actual_length; - - /** Callback function. This will be invoked when the transfer completes, - * fails, or is cancelled. */ - libusb_transfer_cb_fn callback; - - /** User context data to pass to the callback function. */ - void *user_data; - - /** Data buffer */ - unsigned char *buffer; - - /** Number of isochronous packets. Only used for I/O with isochronous - * endpoints. */ - int num_iso_packets; - - /** Isochronous packet descriptors, for isochronous transfers only. */ - struct libusb_iso_packet_descriptor iso_packet_desc[0]; -}; - -int libusb_init(libusb_context **ctx); -void libusb_exit(libusb_context *ctx); -void libusb_set_debug(libusb_context *ctx, int level); - -ssize_t libusb_get_device_list(libusb_context *ctx, - libusb_device ***list); -void libusb_free_device_list(libusb_device **list, int unref_devices); -libusb_device *libusb_ref_device(libusb_device *dev); -void libusb_unref_device(libusb_device *dev); - -int libusb_get_configuration(libusb_device_handle *dev, int *config); -int libusb_get_device_descriptor(libusb_device *dev, - struct libusb_device_descriptor *desc); -int libusb_get_active_config_descriptor(libusb_device *dev, - struct libusb_config_descriptor **config); -int libusb_get_config_descriptor(libusb_device *dev, uint8_t config_index, - struct libusb_config_descriptor **config); -int libusb_get_config_descriptor_by_value(libusb_device *dev, - uint8_t bConfigurationValue, struct libusb_config_descriptor **config); -void libusb_free_config_descriptor(struct libusb_config_descriptor *config); -uint8_t libusb_get_bus_number(libusb_device *dev); -uint8_t libusb_get_device_address(libusb_device *dev); -int libusb_get_max_packet_size(libusb_device *dev, unsigned char endpoint); - -int libusb_open(libusb_device *dev, libusb_device_handle **handle); -void libusb_close(libusb_device_handle *dev_handle); -libusb_device *libusb_get_device(libusb_device_handle *dev_handle); - -int libusb_set_configuration(libusb_device_handle *dev, int configuration); -int libusb_claim_interface(libusb_device_handle *dev, int iface); -int libusb_release_interface(libusb_device_handle *dev, int iface); - -libusb_device_handle *libusb_open_device_with_vid_pid(libusb_context *ctx, - uint16_t vendor_id, uint16_t product_id); - -int libusb_set_interface_alt_setting(libusb_device_handle *dev, - int interface_number, int alternate_setting); -int libusb_clear_halt(libusb_device_handle *dev, unsigned char endpoint); -int libusb_reset_device(libusb_device_handle *dev); - -int libusb_kernel_driver_active(libusb_device_handle *dev, int interface); -int libusb_detach_kernel_driver(libusb_device_handle *dev, int interface); -int libusb_attach_kernel_driver(libusb_device_handle *dev, int interface); - -/* async I/O */ - -/** \ingroup asyncio - * Get the data section of a control transfer. This convenience function is here - * to remind you that the data does not start until 8 bytes into the actual - * buffer, as the setup packet comes first. - * - * Calling this function only makes sense from a transfer callback function, - * or situations where you have already allocated a suitably sized buffer at - * transfer->buffer. - * - * \param transfer a transfer - * \returns pointer to the first byte of the data section - */ -static inline unsigned char *libusb_control_transfer_get_data( - struct libusb_transfer *transfer) -{ - return transfer->buffer + LIBUSB_CONTROL_SETUP_SIZE; -} - -/** \ingroup asyncio - * Get the control setup packet of a control transfer. This convenience - * function is here to remind you that the control setup occupies the first - * 8 bytes of the transfer data buffer. - * - * Calling this function only makes sense from a transfer callback function, - * or situations where you have already allocated a suitably sized buffer at - * transfer->buffer. - * - * \param transfer a transfer - * \returns a casted pointer to the start of the transfer data buffer - */ -static inline struct libusb_control_setup *libusb_control_transfer_get_setup( - struct libusb_transfer *transfer) -{ - return (struct libusb_control_setup *) transfer->buffer; -} - -/** \ingroup asyncio - * Helper function to populate the setup packet (first 8 bytes of the data - * buffer) for a control transfer. The wIndex, wValue and wLength values should - * be given in host-endian byte order. - * - * \param buffer buffer to output the setup packet into - * \param bmRequestType see the - * \ref libusb_control_setup::bmRequestType "bmRequestType" field of - * \ref libusb_control_setup - * \param bRequest see the - * \ref libusb_control_setup::bRequest "bRequest" field of - * \ref libusb_control_setup - * \param wValue see the - * \ref libusb_control_setup::wValue "wValue" field of - * \ref libusb_control_setup - * \param wIndex see the - * \ref libusb_control_setup::wIndex "wIndex" field of - * \ref libusb_control_setup - * \param wLength see the - * \ref libusb_control_setup::wLength "wLength" field of - * \ref libusb_control_setup - */ -static inline void libusb_fill_control_setup(unsigned char *buffer, - uint8_t bmRequestType, uint8_t bRequest, uint16_t wValue, uint16_t wIndex, - uint16_t wLength) -{ - struct libusb_control_setup *setup = (struct libusb_control_setup *) buffer; - setup->bmRequestType = bmRequestType; - setup->bRequest = bRequest; - setup->wValue = libusb_cpu_to_le16(wValue); - setup->wIndex = libusb_cpu_to_le16(wIndex); - setup->wLength = libusb_cpu_to_le16(wLength); -} - -struct libusb_transfer *libusb_alloc_transfer(int iso_packets); -int libusb_submit_transfer(struct libusb_transfer *transfer); -int libusb_cancel_transfer(struct libusb_transfer *transfer); -void libusb_free_transfer(struct libusb_transfer *transfer); - -/** \ingroup asyncio - * Helper function to populate the required \ref libusb_transfer fields - * for a control transfer. - * - * If you pass a transfer buffer to this function, the first 8 bytes will - * be interpreted as a control setup packet, and the wLength field will be - * used to automatically populate the \ref libusb_transfer::length "length" - * field of the transfer. Therefore the recommended approach is: - * -# Allocate a suitably sized data buffer (including space for control setup) - * -# Call libusb_fill_control_setup() - * -# If this is a host-to-device transfer with a data stage, put the data - * in place after the setup packet - * -# Call this function - * -# Call libusb_submit_transfer() - * - * It is also legal to pass a NULL buffer to this function, in which case this - * function will not attempt to populate the length field. Remember that you - * must then populate the buffer and length fields later. - * - * \param transfer the transfer to populate - * \param dev_handle handle of the device that will handle the transfer - * \param buffer data buffer. If provided, this function will interpret the - * first 8 bytes as a setup packet and infer the transfer length from that. - * \param callback callback function to be invoked on transfer completion - * \param user_data user data to pass to callback function - * \param timeout timeout for the transfer in milliseconds - */ -static inline void libusb_fill_control_transfer( - struct libusb_transfer *transfer, libusb_device_handle *dev_handle, - unsigned char *buffer, libusb_transfer_cb_fn callback, void *user_data, - unsigned int timeout) -{ - struct libusb_control_setup *setup = (struct libusb_control_setup *) buffer; - transfer->dev_handle = dev_handle; - transfer->endpoint = 0; - transfer->type = LIBUSB_TRANSFER_TYPE_CONTROL; - transfer->timeout = timeout; - transfer->buffer = buffer; - if (setup) - transfer->length = LIBUSB_CONTROL_SETUP_SIZE - + libusb_le16_to_cpu(setup->wLength); - transfer->user_data = user_data; - transfer->callback = callback; -} - -/** \ingroup asyncio - * Helper function to populate the required \ref libusb_transfer fields - * for a bulk transfer. - * - * \param transfer the transfer to populate - * \param dev_handle handle of the device that will handle the transfer - * \param endpoint address of the endpoint where this transfer will be sent - * \param buffer data buffer - * \param length length of data buffer - * \param callback callback function to be invoked on transfer completion - * \param user_data user data to pass to callback function - * \param timeout timeout for the transfer in milliseconds - */ -static inline void libusb_fill_bulk_transfer(struct libusb_transfer *transfer, - libusb_device_handle *dev_handle, unsigned char endpoint, - unsigned char *buffer, int length, libusb_transfer_cb_fn callback, - void *user_data, unsigned int timeout) -{ - transfer->dev_handle = dev_handle; - transfer->endpoint = endpoint; - transfer->type = LIBUSB_TRANSFER_TYPE_BULK; - transfer->timeout = timeout; - transfer->buffer = buffer; - transfer->length = length; - transfer->user_data = user_data; - transfer->callback = callback; -} - -/** \ingroup asyncio - * Helper function to populate the required \ref libusb_transfer fields - * for an interrupt transfer. - * - * \param transfer the transfer to populate - * \param dev_handle handle of the device that will handle the transfer - * \param endpoint address of the endpoint where this transfer will be sent - * \param buffer data buffer - * \param length length of data buffer - * \param callback callback function to be invoked on transfer completion - * \param user_data user data to pass to callback function - * \param timeout timeout for the transfer in milliseconds - */ -static inline void libusb_fill_interrupt_transfer( - struct libusb_transfer *transfer, libusb_device_handle *dev_handle, - unsigned char endpoint, unsigned char *buffer, int length, - libusb_transfer_cb_fn callback, void *user_data, unsigned int timeout) -{ - transfer->dev_handle = dev_handle; - transfer->endpoint = endpoint; - transfer->type = LIBUSB_TRANSFER_TYPE_INTERRUPT; - transfer->timeout = timeout; - transfer->buffer = buffer; - transfer->length = length; - transfer->user_data = user_data; - transfer->callback = callback; -} - -/** \ingroup asyncio - * Helper function to populate the required \ref libusb_transfer fields - * for an isochronous transfer. - * - * \param transfer the transfer to populate - * \param dev_handle handle of the device that will handle the transfer - * \param endpoint address of the endpoint where this transfer will be sent - * \param buffer data buffer - * \param length length of data buffer - * \param num_iso_packets the number of isochronous packets - * \param callback callback function to be invoked on transfer completion - * \param user_data user data to pass to callback function - * \param timeout timeout for the transfer in milliseconds - */ -static inline void libusb_fill_iso_transfer(struct libusb_transfer *transfer, - libusb_device_handle *dev_handle, unsigned char endpoint, - unsigned char *buffer, int length, int num_iso_packets, - libusb_transfer_cb_fn callback, void *user_data, unsigned int timeout) -{ - transfer->dev_handle = dev_handle; - transfer->endpoint = endpoint; - transfer->type = LIBUSB_TRANSFER_TYPE_ISOCHRONOUS; - transfer->timeout = timeout; - transfer->buffer = buffer; - transfer->length = length; - transfer->num_iso_packets = num_iso_packets; - transfer->user_data = user_data; - transfer->callback = callback; -} - -/** \ingroup asyncio - * Convenience function to set the length of all packets in an isochronous - * transfer, based on the num_iso_packets field in the transfer structure. - * - * \param transfer a transfer - * \param length the length to set in each isochronous packet descriptor - * \see libusb_get_max_packet_size() - */ -static inline void libusb_set_iso_packet_lengths( - struct libusb_transfer *transfer, unsigned int length) -{ - int i; - for (i = 0; i < transfer->num_iso_packets; i++) - transfer->iso_packet_desc[i].length = length; -} - -/** \ingroup asyncio - * Convenience function to locate the position of an isochronous packet - * within the buffer of an isochronous transfer. - * - * This is a thorough function which loops through all preceding packets, - * accumulating their lengths to find the position of the specified packet. - * Typically you will assign equal lengths to each packet in the transfer, - * and hence the above method is sub-optimal. You may wish to use - * libusb_get_iso_packet_buffer_simple() instead. - * - * \param transfer a transfer - * \param packet the packet to return the address of - * \returns the base address of the packet buffer inside the transfer buffer, - * or NULL if the packet does not exist. - * \see libusb_get_iso_packet_buffer_simple() - */ -static inline unsigned char *libusb_get_iso_packet_buffer( - struct libusb_transfer *transfer, unsigned int packet) -{ - int i; - size_t offset = 0; - - if (packet >= transfer->num_iso_packets) - return NULL; - - for (i = 0; i < packet; i++) - offset += transfer->iso_packet_desc[i].length; - - return transfer->buffer + offset; -} - -/** \ingroup asyncio - * Convenience function to locate the position of an isochronous packet - * within the buffer of an isochronous transfer, for transfers where each - * packet is of identical size. - * - * This function relies on the assumption that every packet within the transfer - * is of identical size to the first packet. Calculating the location of - * the packet buffer is then just a simple calculation: - * buffer + (packet_size * packet) - * - * Do not use this function on transfers other than those that have identical - * packet lengths for each packet. - * - * \param transfer a transfer - * \param packet the packet to return the address of - * \returns the base address of the packet buffer inside the transfer buffer, - * or NULL if the packet does not exist. - * \see libusb_get_iso_packet_buffer() - */ -static inline unsigned char *libusb_get_iso_packet_buffer_simple( - struct libusb_transfer *transfer, unsigned int packet) -{ - if (packet >= transfer->num_iso_packets) - return NULL; - - return transfer->buffer + (transfer->iso_packet_desc[0].length * packet); -} - -/* sync I/O */ - -int libusb_control_transfer(libusb_device_handle *dev_handle, - uint8_t request_type, uint8_t request, uint16_t value, uint16_t index, - unsigned char *data, uint16_t length, unsigned int timeout); - -int libusb_bulk_transfer(libusb_device_handle *dev_handle, - unsigned char endpoint, unsigned char *data, int length, - int *actual_length, unsigned int timeout); - -int libusb_interrupt_transfer(libusb_device_handle *dev_handle, - unsigned char endpoint, unsigned char *data, int length, - int *actual_length, unsigned int timeout); - -/** \ingroup desc - * Retrieve a descriptor from the default control pipe. - * This is a convenience function which formulates the appropriate control - * message to retrieve the descriptor. - * - * \param dev a device handle - * \param desc_type the descriptor type, see \ref libusb_descriptor_type - * \param desc_index the index of the descriptor to retrieve - * \param data output buffer for descriptor - * \param length size of data buffer - * \returns number of bytes returned in data, or LIBUSB_ERROR code on failure - */ -static inline int libusb_get_descriptor(libusb_device_handle *dev, - uint8_t desc_type, uint8_t desc_index, unsigned char *data, int length) -{ - return libusb_control_transfer(dev, LIBUSB_ENDPOINT_IN, - LIBUSB_REQUEST_GET_DESCRIPTOR, (desc_type << 8) | desc_index, 0, data, - length, 1000); -} - -/** \ingroup desc - * Retrieve a descriptor from a device. - * This is a convenience function which formulates the appropriate control - * message to retrieve the descriptor. The string returned is Unicode, as - * detailed in the USB specifications. - * - * \param dev a device handle - * \param desc_index the index of the descriptor to retrieve - * \param langid the language ID for the string descriptor - * \param data output buffer for descriptor - * \param length size of data buffer - * \returns number of bytes returned in data, or LIBUSB_ERROR code on failure - * \see libusb_get_string_descriptor_ascii() - */ -static inline int libusb_get_string_descriptor(libusb_device_handle *dev, - uint8_t desc_index, uint16_t langid, unsigned char *data, int length) -{ - return libusb_control_transfer(dev, LIBUSB_ENDPOINT_IN, - LIBUSB_REQUEST_GET_DESCRIPTOR, (LIBUSB_DT_STRING << 8) | desc_index, - langid, data, length, 1000); -} - -int libusb_get_string_descriptor_ascii(libusb_device_handle *dev, - uint8_t index, unsigned char *data, int length); - -/* polling and timeouts */ - -int libusb_try_lock_events(libusb_context *ctx); -void libusb_lock_events(libusb_context *ctx); -void libusb_unlock_events(libusb_context *ctx); -int libusb_event_handling_ok(libusb_context *ctx); -int libusb_event_handler_active(libusb_context *ctx); -void libusb_lock_event_waiters(libusb_context *ctx); -void libusb_unlock_event_waiters(libusb_context *ctx); -int libusb_wait_for_event(libusb_context *ctx, struct timeval *tv); - -int libusb_handle_events_timeout(libusb_context *ctx, struct timeval *tv); -int libusb_handle_events(libusb_context *ctx); -int libusb_handle_events_locked(libusb_context *ctx, struct timeval *tv); -int libusb_get_next_timeout(libusb_context *ctx, struct timeval *tv); - -/** \ingroup poll - * File descriptor for polling - */ -struct libusb_pollfd { - /** Numeric file descriptor */ - int fd; - - /** Event flags to poll for from . POLLIN indicates that you - * should monitor this file descriptor for becoming ready to read from, - * and POLLOUT indicates that you should monitor this file descriptor for - * nonblocking write readiness. */ - short events; -}; - -/** \ingroup poll - * Callback function, invoked when a new file descriptor should be added - * to the set of file descriptors monitored for events. - * \param fd the new file descriptor - * \param events events to monitor for, see \ref libusb_pollfd for a - * description - * \param user_data User data pointer specified in - * libusb_set_pollfd_notifiers() call - * \see libusb_set_pollfd_notifiers() - */ -typedef void (*libusb_pollfd_added_cb)(int fd, short events, void *user_data); - -/** \ingroup poll - * Callback function, invoked when a file descriptor should be removed from - * the set of file descriptors being monitored for events. After returning - * from this callback, do not use that file descriptor again. - * \param fd the file descriptor to stop monitoring - * \param user_data User data pointer specified in - * libusb_set_pollfd_notifiers() call - * \see libusb_set_pollfd_notifiers() - */ -typedef void (*libusb_pollfd_removed_cb)(int fd, void *user_data); - -const struct libusb_pollfd **libusb_get_pollfds(libusb_context *ctx); -void libusb_set_pollfd_notifiers(libusb_context *ctx, - libusb_pollfd_added_cb added_cb, libusb_pollfd_removed_cb removed_cb, - void *user_data); - -#ifdef __cplusplus -} -#endif - -#endif