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USB设备请求例程(国外英文资料)
USB设备请求例程(国外英文资料)
*
In general, you first need to let the firmware understand the type of request for the USB device, so you need to declare the standard USB requests in the USB firmware program.
Specific statements are as follows:
* /
#define SC_GET_STATUS 0X00 //3setup command: get status
#define SC_CLEAR_FEATURE 0X01 //3setup command: get features
#define SC_RESERVED 0X02 //3setup command: keep
#define SC_SET_FEATURE 0X03 //3setup command: set properties
#define SC_SET_ADDRESS 0X05 //3setup command: set the address
#define SC_GET_DESCRIPTOR 0X06 //3setup command: get descriptors
#define SC_SET_DESCRIPTOR 0X07 //3setup command: set descriptors
#define SC_GET_CONFIGURATION 0X08 //3setup command: get configuration
#define SC_SET_CONFIGURATION 0X09 //3setup command: set configuration
#define SC_GET_INTERFACE 0X0A //3setup command: get the interface
#define SC_SET_INTERFACE 0X0B //3setup command: set up the interface
#define SC_SYNC_FRAME 0X0C //3setup command: sync frame
#define SC_ANCHOR_LOAD 0XA0 //3setup command: firmware loading
#define GD_DEVICE 0X01 //3 gets descriptors: device
#define GD_CONFIGURATION 0X02 //3 gets descriptors: Configuration
#define GD_STRING 0X03 //3 gets descriptors: strings
#define GD_INTERFACE 0X04 //3 gets descriptors: Interfaces
#define GD_EDNPOINT 0X05 //3 gets descriptors: endpoints
#define GD_DEVICE_QUALIFIER 0X06 //3 gets descriptors: device qualification
#define GD_OTHER_SPEED_CONFIGURATION 0X07 //3 gets descriptors: other configurations
#define GD_INTERFACE_POWER 0X08 //3 gets descriptors: interface power
#define GD_HID 0X21 //3 gets descriptors: HID
#define GD_REPORT 0X22 //3 gets descriptors: Report
#define GS_DEVICE 0X80 //3 gets descriptors: device
#define GS_INTERFACE 0X81 //3 gets descriptors: Interfaces
#define GS_ENDPOINT 0X82 //3 gets descriptors: endpoints
#define, FT_DEVICE, 0X00, //3 features: Devices
#define, FT_ENDPOINT, 0X02, //3 properties: endpoints
/ * * / request response equipment
Void setupcommand (void)
{
Void
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