diff options
Diffstat (limited to 'drivers/media/video/bw-qcam.c')
| -rw-r--r-- | drivers/media/video/bw-qcam.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/drivers/media/video/bw-qcam.c b/drivers/media/video/bw-qcam.c index 7d47cbe6ad25..7f7e3d3398d0 100644 --- a/drivers/media/video/bw-qcam.c +++ b/drivers/media/video/bw-qcam.c @@ -104,6 +104,17 @@ static inline void write_lpdata(struct qcam_device *q, int d) static inline void write_lpcontrol(struct qcam_device *q, int d) { + if (d & 0x20) { + /* Set bidirectional mode to reverse (data in) */ + parport_data_reverse(q->pport); + } else { + /* Set bidirectional mode to forward (data out) */ + parport_data_forward(q->pport); + } + + /* Now issue the regular port command, but strip out the + * direction flag */ + d &= ~0x20; parport_write_control(q->pport, d); } @@ -344,10 +355,13 @@ static int qc_detect(struct qcam_device *q) /* Be (even more) liberal in what you accept... */ /* if (count > 30 && count < 200) */ - if (count > 20 && count < 300) + if (count > 20 && count < 400) { return 1; /* found */ - else + } else { + printk(KERN_ERR "No Quickcam found on port %s\n", + q->pport->name); return 0; /* not found */ + } } |