diff options
| -rw-r--r-- | sys/dev/ppbus/lpt.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sys/dev/ppbus/lpt.c b/sys/dev/ppbus/lpt.c index b83cc03..a7f8dd9 100644 --- a/sys/dev/ppbus/lpt.c +++ b/sys/dev/ppbus/lpt.c @@ -695,6 +695,11 @@ lptread(dev_t dev, struct uio *uio, int ioflag) device_t ppbus = device_get_parent(lptdev); int error = 0, len; + if (sc->sc_flags & LP_BYPASS) { + /* we can't do reads in bypass mode */ + return (EPERM); + } + if ((error = ppb_1284_negociate(ppbus, PPB_NIBBLE, 0))) return (error); |
