在使用libusb_interrupt_transfer函数之前,需要在初始化libusb库之后,通过libusb_open_device_with_vid_pid函数打开设备,获取设备句柄。此外,还需要在传输数据之前调用libusb_claim_interface函数来声明并激活接口。 以下是一个使用libusb_interrupt_transfer函数进行中断传输的示例: ```c #include <stdio.h> #include...
libusb_interrupt_transfer函数是一个用于在USB设备上进行中断传输的函数。它的用法如下: 1.首先,需要创建一个libusb_device_handle对象,该对象代表了一个USB设备的句柄。 ```c libusb_device_handle *handle; libusb_open(device, &handle); //打开设备 ``` 2.然后,需要创建一个缓冲区用于传输数据。 ```...
In my mind, the implication of this is that, the momentanydata arrives before the timeout expires,libusb_interrupt_transfer()will return success and fill intransferredwith the quantity of bytes actually received. This is not what happens. Consider the following pseudo-code: /* sizeof (struct ...
libusb Interrupt Transaction 获取鼠标数据 2023-06-07 收起 LibusbAppLibusbAppInitail libusbget usb deive listloop all usb device, to find mouse device.alt[0 > ret]loop all device configuration, to find mouse Configurations.alt[LIBUSB_SUCCESS != ret]loop all device interface, to find mouse i...
intLIBUSB_CALLlibusb_interrupt_transfer( libusb_device_handle *dev_handle,unsignedcharendpoint,unsignedchar*data,intlength,int*actual_length,unsignedinttimeout); 函数功能:执行USB中断传输。该函数可以处理输入和输出,根据端点地址的方向位推断传输方向,该函数采用同步模式,数据传输完毕才返回 ...
int API_EXPORTED libusb_interrupt_transfer(libusb_device_handle *dev_handle, unsigned char endpoint, unsigned char *data, int length, int *transferred, unsigned int timeout); 2.9 异步传输函数 2.9.1 使用步骤 使用libusb 的异步函数时,有如下步骤: ...
函数原型:int LIBUSB_CALL libusb_interrupt_transfer(libusb_device_handle *dev_handle,unsigned char endpoint, unsigned char *data, int length,int *actual_length, unsigned int timeout); 函数功能:执行USB中断传输。该函数可以处理输入和输出,根据端点地址的方向位推断传输方向,该函数采用同步模式,数据传输完...
int ret = libusb_interrupt_transfer(handle, ENDPOINT_IN, buffer, sizeof(buffer), &len, 0); My device needs a code to be sent before reading data and a 64-sized buffer, even though the output oflsusb -vandbLengthis only 7. #define ENDPOINT_OUT 0x01 ...
intAPI_EXPORTEDlibusb_interrupt_transfer(libusb_device_handle*dev_handle, unsignedcharendpoint,unsignedchar*data,intlength, int*transferred,unsignedinttimeout); 2.9 异步传输函数 2.9.1 使用步骤 使用libusb 的异步函数时,有如下步骤: 分配:分配一个libusb_transfer结构体 ...
int libusb_interrupt_transfer(libusb_device_handle *dev_handle, unsigned char endpoint, unsigned char *data, int length, int *actual_length, unsigned int timeout); intlibusb_bulk_transfer(libusb_device_handle *dev_handle, unsigned char endpoint, unsigned char *data, int length, int *actual...