diff options
| -rw-r--r-- | sys/src/9/pc/devkbd.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/sys/src/9/pc/devkbd.c b/sys/src/9/pc/devkbd.c index 9ce1a4895..bf43d85ba 100644 --- a/sys/src/9/pc/devkbd.c +++ b/sys/src/9/pc/devkbd.c @@ -277,6 +277,14 @@ i8042auxenable(void (*putc)(int, int)) iunlock(&i8042lock); } +static void +kbdpoll(void) +{ + if(nokbd || qlen(kbd.q) > 0) + return; + i8042intr(0, 0); +} + static Chan * kbdattach(char *spec) { @@ -324,20 +332,22 @@ kbdclose(Chan *c) static Block* kbdbread(Chan *c, long n, ulong off) { - if(c->qid.path == Qscancode) + if(c->qid.path == Qscancode){ + kbdpoll(); return qbread(kbd.q, n); - else - return devbread(c, n, off); + } + return devbread(c, n, off); } static long kbdread(Chan *c, void *a, long n, vlong) { - if(c->qid.path == Qscancode) + if(c->qid.path == Qscancode){ + kbdpoll(); return qread(kbd.q, a, n); + } if(c->qid.path == Qdir) return devdirread(c, a, n, kbdtab, nelem(kbdtab), devgen); - error(Egreg); return 0; } |