diff options
Diffstat (limited to 'include/serial.h')
| -rw-r--r-- | include/serial.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/serial.h b/include/serial.h index 43451a3019..f2638ec566 100644 --- a/include/serial.h +++ b/include/serial.h @@ -67,9 +67,21 @@ extern int serial_assign(char * name); extern void serial_reinit_all(void); /* For usbtty */ +#ifdef CONFIG_USB_TTY + extern int usbtty_getc(void); extern void usbtty_putc(const char c); extern void usbtty_puts(const char *str); extern int usbtty_tstc(void); +#else + +/* stubs */ +#define usbtty_getc() 0 +#define usbtty_putc(a) +#define usbtty_puts(a) +#define usbtty_tstc() 0 + +#endif /* CONFIG_USB_TTY */ + #endif |