usb: add empty usb implementation

Signed-off-by: Sean Cross <sean@xobs.io>
This commit is contained in:
2019-01-01 22:37:14 +08:00
parent ebed2b919f
commit b31c0213b5
3 changed files with 32 additions and 9 deletions

14
include/usb.h Normal file
View File

@ -0,0 +1,14 @@
#ifndef __USB_H
#define __USB_H
#ifdef __cplusplus
extern "C" {
#endif
void usb_isr(void);
#ifdef __cplusplus
}
#endif
#endif