?? usbs.c
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#include "usb.h"#define dprintf(x...)extern u8 ep0state;static const USB_DeviceRequest UDReq[] = { //for what??? {}, // get_status {}, // clear_feature {}, // RFU {}, // set_feature {}, // RFU {}, // set_address {}, // get_descriptor {}, // set_descriptor {}, // get_configuration {0, SET_CONFIGURATION, 1, 0, 8}, {}, // get_interface {0, SET_INTERFACE, 1, 0, 8}, {}, // SOF};void usbEncodeDevReq(u8 *buf, int index) //for what??{ memcpy(buf, &UDReq[index], sizeof(USB_DeviceRequest));}void usbHandleDevReq(u8 *buf){ dprintf("dev req:%d\n", (buf[0] & (3 << 5)) >> 5); switch ((buf[0] & (3 << 5)) >> 5) { case 0: /* Standard request */ usbHandleStandDevReq(buf); break; case 1: /* Class request */ usbHandleClassDevReq(buf); ep0state=2; break; case 2: /* Vendor request */ break; }}?? 快捷鍵說明
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