diff options
| -rw-r--r-- | sys/dev/syscons/schistory.c | 6 | ||||
| -rw-r--r-- | sys/sys/consio.h | 3 |
2 files changed, 9 insertions, 0 deletions
diff --git a/sys/dev/syscons/schistory.c b/sys/dev/syscons/schistory.c index 1c5f154..bd9b1d2 100644 --- a/sys/dev/syscons/schistory.c +++ b/sys/dev/syscons/schistory.c @@ -299,6 +299,12 @@ sc_hist_ioctl(struct tty *tp, u_long cmd, caddr_t data, int flag, DPRINTF(5, ("error:%d, rows:%d, pool:%d\n", error, sc_vtb_rows(scp->history), extra_history_size)); return error; + + case CONS_CLRHIST: + scp = SC_STAT(tp->t_dev); + sc_vtb_clear(scp->history, scp->sc->scr_map[0x20], + SC_NORM_ATTR << 8); + return 0; } return ENOIOCTL; diff --git a/sys/sys/consio.h b/sys/sys/consio.h index 5cb599a..1915c7e 100644 --- a/sys/sys/consio.h +++ b/sys/sys/consio.h @@ -116,6 +116,9 @@ typedef struct ssaver ssaver_t; /* set the history (scroll back) buffer size (in lines) */ #define CONS_HISTORY _IOW('c', 9, int) +/* clear the history (scroll back) buffer */ +#define CONS_CLRHIST _IO('c', 10) + /* mouse cursor ioctl */ struct mouse_data { int x; |
