#![allow(non_camel_case_types)]
extern crate libc;
use libc::{
c_void, c_int, c_uint, c_char, c_uchar, c_short, intptr_t,
size_t, ssize_t, timeval,
};
#[repr(C)]
pub struct libusb_context {
__private: c_void
}
#[repr(C)]
pub struct libusb_device {
__private: c_void
}
#[repr(C)]
pub struct libusb_device_handle {
__private: c_void
}
#[repr(C)]
pub struct libusb_version {
pub major: u16,
pub minor: u16,
pub micro: u16,
pub nano: u16,
pub rc: *const c_char,
pub describe: *const c_char,
}
#[allow(non_snake_case)]
#[repr(C)]
pub struct libusb_device_descriptor {
pub bLength: u8,
pub bDescriptorType: u8,
pub bcdUSB: u16,
pub bDeviceClass: u8,
pub bDeviceSubClass: u8,
pub bDeviceProtocol: u8,
pub bMaxPacketSize0: u8,
pub idVendor: u16,
pub idProduct: u16,
pub bcdDevice: u16,
pub iManufacturer: u8,
pub iProduct: u8,
pub iSerialNumber: u8,
pub bNumConfigurations: u8,
}
#[allow(non_snake_case)]
#[repr(C)]
pub struct libusb_config_descriptor {
pub bLength: u8,
pub bDescriptorType: u8,
pub wTotalLength: u16,
pub bNumInterfaces: u8,
pub bConfigurationValue: u8,
pub iConfiguration: u8,
pub bmAttributes: u8,
pub bMaxPower: u8,
pub interface: *const libusb_interface,
pub extra: *const c_uchar,
pub extra_length: c_int,
}
#[repr(C)]
pub struct libusb_interface {
pub altsetting: *const libusb_interface_descriptor,
pub num_altsetting: c_int,
}
#[allow(non_snake_case)]
#[repr(C)]
pub struct libusb_interface_descriptor {
pub bLength: u8,
pub bDescriptorType: u8,
pub bInterfaceNumber: u8,
pub bAlternateSetting: u8,
pub bNumEndpoints: u8,
pub bInterfaceClass: u8,
pub bInterfaceSubClass: u8,
pub bInterfaceProtocol: u8,
pub iInterface: u8,
pub endpoint: *const libusb_endpoint_descriptor,
pub extra: *const c_uchar,
pub extra_length: c_int,
}
#[allow(non_snake_case)]
#[repr(C)]
pub struct libusb_endpoint_descriptor {
pub bLength: u8,
pub bDescriptorType: u8,
pub bEndpointAddress: u8,
pub bmAttributes: u8,
pub wMaxPacketSize: u16,
pub bInterval: u8,
pub bRefresh: u8,
pub bSynchAddress: u8,
pub extra: *const c_uchar,
pub extra_length: c_int,
}
#[repr(C)]
pub struct libusb_iso_packet_descriptor {
pub length: c_uint,
pub actual_length: c_uint,
pub status: c_int,
}
#[allow(non_snake_case)]
#[repr(C)]
pub struct libusb_ss_endpoint_companion_descriptor {
pub bLength: u8,
pub bDescriptorType: u8,
pub bMaxBurst: u8,
pub bmAttributes: u8,
pub wBytesPerInterval: u16,
}
#[allow(non_snake_case)]
#[repr(C)]
pub struct libusb_bos_dev_capability_descriptor {
pub bLength: u8,
pub bDescriptorType: u8,
pub bDevCapabilityType: u8,
}
#[allow(non_snake_case)]
#[repr(C)]
pub struct libusb_bos_descriptor {
pub bLength: u8,
pub bDescriptorType: u8,
pub wTotalLength: u16,
pub bNumDeviceCaps: u8,
}
#[allow(non_snake_case)]
#[repr(C)]
pub struct libusb_usb_2_0_extension_descriptor {
pub bLength: u8,
pub bDescriptorType: u8,
pub bDevCapabilityType: u8,
pub bmAttributes: u32,
}
#[allow(non_snake_case)]
#[repr(C)]
pub struct libusb_ss_usb_device_capability_descriptor {
pub bLength: u8,
pub bDescriptorType: u8,
pub bDevCapabilityType: u8,
pub bmAttributes: u8,
pub wSpeedSupported: u16,
pub bFunctionalitySupport: u8,
pub bU1DevExitLat: u8,
pub bU2DevExitLat: u8,
}
#[allow(non_snake_case)]
#[repr(C)]
pub struct libusb_container_id_descriptor {
pub bLength: u8,
pub bDescriptorType: u8,
pub bDevCapabilityType: u8,
pub bReserved: u8,
pub ContainerId: [u8; 16],
}
#[repr(C)]
pub struct libusb_transfer {
pub dev_handle: *mut libusb_device_handle,
pub flags: u8,
pub endpoint: c_uchar,
pub transfer_type: c_uchar,
pub timeout: c_uint,
pub status: c_int,
pub length: c_int,
pub actual_length: c_int,
pub callback: libusb_transfer_cb_fn,
pub user_data: *mut c_void,
pub buffer: *mut c_uchar,
pub num_iso_packets: c_int,
pub iso_packet_desc: [libusb_iso_packet_descriptor; 0],
}
#[repr(C)]
pub struct libusb_pollfd {
pub fd: c_int,
pub events: c_short,
}
pub type libusb_transfer_cb_fn = extern "C" fn(*mut libusb_transfer);
pub type libusb_pollfd_added_cb = extern "C" fn(c_int, c_short, *mut c_void);
pub type libusb_pollfd_removed_cb = extern "C" fn(c_int, *mut c_void);
pub const LIBUSB_SUCCESS: c_int = 0;
pub const LIBUSB_ERROR_IO: c_int = -1;
pub const LIBUSB_ERROR_INVALID_PARAM: c_int = -2;
pub const LIBUSB_ERROR_ACCESS: c_int = -3;
pub const LIBUSB_ERROR_NO_DEVICE: c_int = -4;
pub const LIBUSB_ERROR_NOT_FOUND: c_int = -5;
pub const LIBUSB_ERROR_BUSY: c_int = -6;
pub const LIBUSB_ERROR_TIMEOUT: c_int = -7;
pub const LIBUSB_ERROR_OVERFLOW: c_int = -8;
pub const LIBUSB_ERROR_PIPE: c_int = -9;
pub const LIBUSB_ERROR_INTERRUPTED: c_int = -10;
pub const LIBUSB_ERROR_NO_MEM: c_int = -11;
pub const LIBUSB_ERROR_NOT_SUPPORTED: c_int = -12;
pub const LIBUSB_ERROR_OTHER: c_int = -99;
pub const LIBUSB_TRANSFER_COMPLETED: c_int = 0;
pub const LIBUSB_TRANSFER_ERROR: c_int = 1;
pub const LIBUSB_TRANSFER_TIMED_OUT: c_int = 2;
pub const LIBUSB_TRANSFER_CANCELLED: c_int = 3;
pub const LIBUSB_TRANSFER_STALL: c_int = 4;
pub const LIBUSB_TRANSFER_NO_DEVICE: c_int = 5;
pub const LIBUSB_TRANSFER_OVERFLOW: c_int = 6;
pub const LIBUSB_TRANSFER_SHORT_NOT_OK: u8 = 1;
pub const LIBUSB_TRANSFER_FREE_BUFFER : u8 = 1<<1;
pub const LIBUSB_TRANSFER_FREE_TRANSFER : u8 = 1<<2;
pub const LIBUSB_TRANSFER_ADD_ZERO_PACKET: u8 = 1<<3;
pub const LIBUSB_CAP_HAS_CAPABILITY: u32 = 0x0000;
pub const LIBUSB_CAP_HAS_HOTPLUG: u32 = 0x0001;
pub const LIBUSB_CAP_HAS_HID_ACCESS: u32 = 0x0100;
pub const LIBUSB_CAP_SUPPORTS_DETACH_KERNEL_DRIVER: u32 = 0x0101;
pub const LIBUSB_LOG_LEVEL_NONE: c_int = 0;
pub const LIBUSB_LOG_LEVEL_ERROR: c_int = 1;
pub const LIBUSB_LOG_LEVEL_WARNING: c_int = 2;
pub const LIBUSB_LOG_LEVEL_INFO: c_int = 3;
pub const LIBUSB_LOG_LEVEL_DEBUG: c_int = 4;
pub const LIBUSB_LOG_CG_GLOBAL: u8 = 1;
pub const LIBUSB_LOG_CG_CONTEXT: u8 = 1 << 1;
pub const LIBUSB_CLASS_PER_INTERFACE: u8 = 0;
pub const LIBUSB_CLASS_AUDIO: u8 = 1;
pub const LIBUSB_CLASS_COMM: u8 = 2;
pub const LIBUSB_CLASS_HID: u8 = 3;
pub const LIBUSB_CLASS_PHYSICAL: u8 = 5;
pub const LIBUSB_CLASS_PRINTER: u8 = 7;
pub const LIBUSB_CLASS_IMAGE: u8 = 6;
pub const LIBUSB_CLASS_MASS_STORAGE: u8 = 8;
pub const LIBUSB_CLASS_HUB: u8 = 9;
pub const LIBUSB_CLASS_DATA: u8 = 10;
pub const LIBUSB_CLASS_SMART_CARD: u8 = 0x0B;
pub const LIBUSB_CLASS_CONTENT_SECURITY: u8 = 0x0D;
pub const LIBUSB_CLASS_VIDEO: u8 = 0x0E;
pub const LIBUSB_CLASS_PERSONAL_HEALTHCARE: u8 = 0x0F;
pub const LIBUSB_CLASS_DIAGNOSTIC_DEVICE: u8 = 0xDC;
pub const LIBUSB_CLASS_WIRELESS: u8 = 0xE0;
pub const LIBUSB_CLASS_APPLICATION: u8 = 0xFE;
pub const LIBUSB_CLASS_VENDOR_SPEC: u8 = 0xFF;
pub const LIBUSB_SPEED_UNKNOWN: c_int = 0;
pub const LIBUSB_SPEED_LOW: c_int = 1;
pub const LIBUSB_SPEED_FULL: c_int = 2;
pub const LIBUSB_SPEED_HIGH: c_int = 3;
pub const LIBUSB_SPEED_SUPER: c_int = 4;
pub const LIBUSB_SPEED_SUPER_PLUS: c_int = 5;
pub const LIBUSB_DT_DEVICE: u8 = 0x01;
pub const LIBUSB_DT_CONFIG: u8 = 0x02;
pub const LIBUSB_DT_STRING: u8 = 0x03;
pub const LIBUSB_DT_INTERFACE: u8 = 0x04;
pub const LIBUSB_DT_ENDPOINT: u8 = 0x05;
pub const LIBUSB_DT_BOS: u8 = 0x0F;
pub const LIBUSB_DT_DEVICE_CAPABILITY: u8 = 0x10;
pub const LIBUSB_DT_HID: u8 = 0x21;
pub const LIBUSB_DT_REPORT: u8 = 0x22;
pub const LIBUSB_DT_PHYSICAL: u8 = 0x23;
pub const LIBUSB_DT_HUB: u8 = 0x29;
pub const LIBUSB_DT_SUPERSPEED_HUB: u8 = 0x2A;
pub const LIBUSB_DT_SS_ENDPOINT_COMPANION: u8 = 0x30;
pub const LIBUSB_ENDPOINT_ADDRESS_MASK: u8 = 0x0F;
pub const LIBUSB_ENDPOINT_DIR_MASK: u8 = 0x80;
pub const LIBUSB_ENDPOINT_IN: u8 = 0x80;
pub const LIBUSB_ENDPOINT_OUT: u8 = 0x00;
pub const LIBUSB_TRANSFER_TYPE_MASK: u8 = 0x03;
pub const LIBUSB_TRANSFER_TYPE_CONTROL: u8 = 0;
pub const LIBUSB_TRANSFER_TYPE_ISOCHRONOUS: u8 = 1;
pub const LIBUSB_TRANSFER_TYPE_BULK: u8 = 2;
pub const LIBUSB_TRANSFER_TYPE_INTERRUPT: u8 = 3;
pub const LIBUSB_TRANSFER_TYPE_BULK_STREAM: u8 = 4;
pub const LIBUSB_ISO_SYNC_TYPE_MASK: u8 = 0x0C;
pub const LIBUSB_ISO_SYNC_TYPE_NONE: u8 = 0;
pub const LIBUSB_ISO_SYNC_TYPE_ASYNC: u8 = 1;
pub const LIBUSB_ISO_SYNC_TYPE_ADAPTIVE: u8 = 2;
pub const LIBUSB_ISO_SYNC_TYPE_SYNC: u8 = 3;
pub const LIBUSB_ISO_USAGE_TYPE_MASK: u8 = 0x30;
pub const LIBUSB_ISO_USAGE_TYPE_DATA: u8 = 0;
pub const LIBUSB_ISO_USAGE_TYPE_FEEDBACK: u8 = 1;
pub const LIBUSB_ISO_USAGE_TYPE_IMPLICIT: u8 = 2;
pub const LIBUSB_REQUEST_TYPE_STANDARD: u8 = 0x00 << 5;
pub const LIBUSB_REQUEST_TYPE_CLASS: u8 = 0x01 << 5;
pub const LIBUSB_REQUEST_TYPE_VENDOR: u8 = 0x02 << 5;
pub const LIBUSB_REQUEST_TYPE_RESERVED: u8 = 0x03 << 5;
pub const LIBUSB_RECIPIENT_DEVICE: u8 = 0x00;
pub const LIBUSB_RECIPIENT_INTERFACE: u8 = 0x01;
pub const LIBUSB_RECIPIENT_ENDPOINT: u8 = 0x02;
pub const LIBUSB_RECIPIENT_OTHER: u8 = 0x03;
pub const LIBUSB_REQUEST_GET_STATUS: u8 = 0x00;
pub const LIBUSB_REQUEST_CLEAR_FEATURE: u8 = 0x01;
pub const LIBUSB_REQUEST_SET_FEATURE: u8 = 0x03;
pub const LIBUSB_REQUEST_SET_ADDRESS: u8 = 0x05;
pub const LIBUSB_REQUEST_GET_DESCRIPTOR: u8 = 0x06;
pub const LIBUSB_REQUEST_SET_DESCRIPTOR: u8 = 0x07;
pub const LIBUSB_REQUEST_GET_CONFIGURATION: u8 = 0x08;
pub const LIBUSB_REQUEST_SET_CONFIGURATION: u8 = 0x09;
pub const LIBUSB_REQUEST_GET_INTERFACE: u8 = 0x0A;
pub const LIBUSB_REQUEST_SET_INTERFACE: u8 = 0x0B;
pub const LIBUSB_REQUEST_SYNCH_FRAME: u8 = 0x0C;
pub const LIBUSB_REQUEST_SET_SEL: u8 = 0x30;
pub const LIBUSB_SET_ISOCH_DELAY: u8 = 0x31;
pub type libusb_hotplug_callback_handle = c_int;
pub type libusb_hotplug_callback_fn = extern "C" fn(ctx: *mut libusb_context, device: *mut libusb_device, event: libusb_hotplug_event, user_data: *mut c_void) -> c_int;
pub type libusb_hotplug_flag = c_int;
pub const LIBUSB_HOTPLUG_NO_FLAGS: libusb_hotplug_flag = 0;
pub const LIBUSB_HOTPLUG_ENUMERATE: libusb_hotplug_flag = 1;
pub type libusb_hotplug_event = c_int;
pub const LIBUSB_HOTPLUG_EVENT_DEVICE_ARRIVED: libusb_hotplug_event = 0x01;
pub const LIBUSB_HOTPLUG_EVENT_DEVICE_LEFT: libusb_hotplug_event = 0x02;
pub const LIBUSB_HOTPLUG_MATCH_ANY: c_int = -1;
pub type libusb_option = c_int;
pub const LIBUSB_OPTION_LOG_LEVEL: libusb_option = 0;
pub const LIBUSB_OPTION_USE_USBDK: libusb_option = 1;
pub type libusb_log_cb = extern "C" fn(ctx: *mut libusb_context, log_level: c_int, msg: *const c_char) -> c_int;
extern "C" {
pub fn libusb_get_version() -> *const libusb_version;
pub fn libusb_has_capability(capability: u32) -> c_int;
pub fn libusb_error_name(errcode: c_int) -> *const c_char;
pub fn libusb_setlocale(locale: *const c_char) -> c_int;
pub fn libusb_strerror(errcode: c_int) -> *const c_char;
pub fn libusb_init(context: *mut *mut libusb_context) -> c_int;
pub fn libusb_exit(context: *mut libusb_context);
pub fn libusb_set_debug(context: *mut libusb_context, level: c_int);
pub fn libusb_set_option(context: *mut libusb_context, option: libusb_option, level: c_int) -> c_int;
pub fn libusb_set_log_cb(context: *mut libusb_context, cb: libusb_log_cb, mode: c_int);
pub fn libusb_get_device_list(context: *mut libusb_context, list: *mut *const *mut libusb_device) -> ssize_t;
pub fn libusb_free_device_list(list: *const *mut libusb_device, unref_devices: c_int);
pub fn libusb_get_parent(dev: *mut libusb_device) -> *mut libusb_device;
pub fn libusb_get_device(dev_handle: *mut libusb_device_handle) -> *mut libusb_device;
pub fn libusb_ref_device(dev: *mut libusb_device) -> *mut libusb_device;
pub fn libusb_unref_device(dev: *mut libusb_device);
pub fn libusb_get_device_descriptor(dev: *const libusb_device, desc: *mut libusb_device_descriptor) -> c_int;
pub fn libusb_get_config_descriptor(dev: *const libusb_device, index: u8, config: *mut *const libusb_config_descriptor) -> c_int;
pub fn libusb_get_active_config_descriptor(dev: *const libusb_device, config: *mut *const libusb_config_descriptor) -> c_int;
pub fn libusb_get_config_descriptor_by_value(dev: *const libusb_device, bConfigurationValue: u8, config: *mut *const libusb_config_descriptor) -> c_int;
pub fn libusb_free_config_descriptor(config: *const libusb_config_descriptor);
pub fn libusb_get_bus_number(dev: *const libusb_device) -> u8;
pub fn libusb_get_port_number(dev: *mut libusb_device) -> u8;
pub fn libusb_get_port_numbers(dev: *mut libusb_device, port_numbers: *mut u8, port_numbers_len: c_int) -> c_int;
pub fn libusb_get_device_address(dev: *const libusb_device) -> u8;
pub fn libusb_get_device_speed(dev: *const libusb_device) -> c_int;
pub fn libusb_get_max_packet_size(dev: *const libusb_device, endpoint: c_uchar) -> c_int;
pub fn libusb_get_max_iso_packet_size(dev: *const libusb_device, endpoint: c_uchar) -> c_int;
pub fn libusb_wrap_sys_device(context: *mut libusb_context, sys_dev: intptr_t, handle: *mut *mut libusb_device_handle) -> c_int;
pub fn libusb_open(dev: *const libusb_device, handle: *mut *mut libusb_device_handle) -> c_int;
pub fn libusb_close(dev_handle: *mut libusb_device_handle);
pub fn libusb_open_device_with_vid_pid(context: *mut libusb_context, vendor_id: u16, product_id: u16) -> *mut libusb_device_handle;
pub fn libusb_reset_device(dev_handle: *mut libusb_device_handle) -> c_int;
pub fn libusb_clear_halt(dev_handle: *mut libusb_device_handle, endpoint: c_uchar) -> c_int;
pub fn libusb_alloc_streams(dev_handle: *mut libusb_device_handle, num_streams: u32, endpoints: *mut c_uchar, num_endpoints: c_int) -> c_int;
pub fn libusb_free_streams(dev_handle: *mut libusb_device_handle, endpoints: *mut c_uchar, num_endpoints: c_int) -> c_int;
pub fn libusb_dev_mem_alloc(dev_handle: *mut libusb_device_handle, length: size_t) -> *mut c_uchar;
pub fn libusb_dev_mem_free(dev_handle: *mut libusb_device_handle, buffer: *mut c_uchar, length: size_t) -> c_int;
pub fn libusb_get_string_descriptor_ascii(dev_handle: *mut libusb_device_handle, desc_index: u8, data: *mut c_uchar, length: c_int) -> c_int;
pub fn libusb_get_configuration(dev_handle: *mut libusb_device_handle, config: *mut c_int) -> c_int;
pub fn libusb_set_configuration(dev_handle: *mut libusb_device_handle, config: c_int) -> c_int;
pub fn libusb_get_ss_endpoint_companion_descriptor(context: *mut libusb_context, endpoint: *const libusb_endpoint_descriptor, ep_comp: *mut *const libusb_ss_endpoint_companion_descriptor) -> c_int;
pub fn libusb_free_ss_endpoint_companion_descriptor(ep_comp: *mut libusb_ss_endpoint_companion_descriptor);
pub fn libusb_get_bos_descriptor(dev_handle: *mut libusb_device_handle, bos: *mut *const libusb_bos_descriptor) -> c_int;
pub fn libusb_free_bos_descriptor(bos: *mut libusb_bos_descriptor);
pub fn libusb_get_usb_2_0_extension_descriptor(context: *mut libusb_context, dev_cap: *mut libusb_bos_dev_capability_descriptor, usb_2_0_extension: *mut *const libusb_usb_2_0_extension_descriptor) -> c_int;
pub fn libusb_free_usb_2_0_extension_descriptor(usb_2_0_extension: *mut libusb_usb_2_0_extension_descriptor);
pub fn libusb_get_ss_usb_device_capability_descriptor(context: *mut libusb_context, dev_cap: *mut libusb_bos_dev_capability_descriptor, ss_usb_device_cap: *mut *const libusb_ss_usb_device_capability_descriptor) -> c_int;
pub fn libusb_free_ss_usb_device_capability_descriptor(ss_usb_device_cap: *mut libusb_ss_usb_device_capability_descriptor);
pub fn libusb_get_container_id_descriptor(context: *mut libusb_context, dev_cap: *mut libusb_bos_dev_capability_descriptor, container_id: *mut *const libusb_container_id_descriptor) -> c_int;
pub fn libusb_free_container_id_descriptor(container_id: *mut libusb_container_id_descriptor);
pub fn libusb_set_auto_detach_kernel_driver(dev_handle: *mut libusb_device_handle, enable: c_int) -> c_int;
pub fn libusb_kernel_driver_active(dev_handle: *mut libusb_device_handle, interface_number: c_int) -> c_int;
pub fn libusb_detach_kernel_driver(dev_handle: *mut libusb_device_handle, interface_number: c_int) -> c_int;
pub fn libusb_attach_kernel_driver(dev_handle: *mut libusb_device_handle, interface_number: c_int) -> c_int;
pub fn libusb_claim_interface(dev_handle: *mut libusb_device_handle, interface_number: c_int) -> c_int;
pub fn libusb_release_interface(dev_handle: *mut libusb_device_handle, interface_number: c_int) -> c_int;
pub fn libusb_set_interface_alt_setting(dev_handle: *mut libusb_device_handle, interface_number: c_int, alternate_setting: c_int) -> c_int;
pub fn libusb_interrupt_transfer(dev_handle: *mut libusb_device_handle, endpoint: c_uchar, data: *mut c_uchar, length: c_int, transferred: *mut c_int, timeout: c_uint) -> c_int;
pub fn libusb_bulk_transfer(dev_handle: *mut libusb_device_handle, endpoint: c_uchar, data: *mut c_uchar, length: c_int, transferred: *mut c_int, timeout: c_uint) -> c_int;
pub fn libusb_control_transfer(dev_handle: *mut libusb_device_handle, request_type: u8, request: u8, value: u16, index: u16, data: *mut c_uchar, length: u16, timeout: c_uint) -> c_int;
pub fn libusb_alloc_transfer(iso_packets: c_int) -> *mut libusb_transfer;
pub fn libusb_submit_transfer(transfer: *mut libusb_transfer) -> c_int;
pub fn libusb_cancel_transfer(transfer: *mut libusb_transfer) -> c_int;
pub fn libusb_free_transfer(transfer: *mut libusb_transfer);
pub fn libusb_transfer_set_stream_id(transfer: *mut libusb_transfer, stream_id: u32);
pub fn libusb_transfer_get_stream_id(transfer: *mut libusb_transfer) -> u32;
pub fn libusb_handle_events(context: *mut libusb_context) -> c_int;
pub fn libusb_handle_events_timeout(context: *mut libusb_context, tv: *const timeval) -> c_int;
pub fn libusb_handle_events_completed(context: *mut libusb_context, completed: *mut c_int) -> c_int;
pub fn libusb_handle_events_timeout_completed(context: *mut libusb_context, tv: *const timeval, completed: *mut c_int) -> c_int;
pub fn libusb_handle_events_locked(context: *mut libusb_context, tv: *const timeval) -> c_int;
pub fn libusb_try_lock_events(context: *mut libusb_context) -> c_int;
pub fn libusb_lock_events(context: *mut libusb_context);
pub fn libusb_unlock_events(context: *mut libusb_context);
pub fn libusb_event_handling_ok(context: *mut libusb_context) -> c_int;
pub fn libusb_event_handler_active(context: *mut libusb_context) -> c_int;
pub fn libusb_interrupt_event_handler(context: *mut libusb_context);
pub fn libusb_lock_event_waiters(context: *mut libusb_context);
pub fn libusb_unlock_event_waiters(context: *mut libusb_context);
pub fn libusb_wait_for_event(context: *mut libusb_context, tv: *const timeval) -> c_int;
pub fn libusb_pollfds_handle_timeouts(context: *mut libusb_context) -> c_int;
pub fn libusb_get_next_timeout(context: *mut libusb_context, tv: *mut timeval) -> c_int;
pub fn libusb_get_pollfds(context: *mut libusb_context) -> *const *mut libusb_pollfd;
pub fn libusb_free_pollfd(pollfds: *const *mut libusb_pollfd);
pub fn libusb_set_pollfd_notifiers(context: *mut libusb_context, added_cb: libusb_pollfd_added_cb, removed_cb: libusb_pollfd_removed_cb, user_data: *mut c_void);
pub fn libusb_hotplug_register_callback(ctx: *mut libusb_context, events: libusb_hotplug_event, flags: libusb_hotplug_flag, vendor_id: c_int, product_id: c_int, dev_class: c_int, cb_fn: libusb_hotplug_callback_fn, user_data: *mut c_void, callback_handle: *mut libusb_hotplug_callback_handle) -> c_int;
pub fn libusb_hotplug_deregister_callback(ctx: *mut libusb_context, callback_handle: libusb_hotplug_callback_handle);}
pub unsafe fn libusb_get_string_descriptor(dev_handle: *mut libusb_device_handle, desc_index: u8, langid: u16, data: *mut c_uchar, length: c_int) -> c_int
{
libusb_control_transfer(dev_handle, LIBUSB_ENDPOINT_IN, LIBUSB_REQUEST_GET_DESCRIPTOR, (LIBUSB_DT_STRING as u16) << 8 | desc_index as u16, langid, data, length as u16, 1000)
}