aboutsummaryrefslogtreecommitdiff
path: root/drivers/media/video/bw-qcam.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-11 19:09:32 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-11 19:09:32 -0700
commitc634920abaf9c0a93266a57beff6fce9d3852cb2 (patch)
tree5ac85f54905a8cd3b12b262c66189084cbff54fc /drivers/media/video/bw-qcam.c
parent6abd2c860e34add677de50e8b134f5af6f4b0893 (diff)
parenta991f44b79fa49b281eb078eed4a76a42101012a (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb: (310 commits) V4L/DVB (6316): Change list_for_each+list_entry to list_for_each_entry V4L/DVB (6315): pvrusb2: Change list_for_each+list_entry to list_for_each_entry V4L/DVB (6314): saa7134: Replace list_for_each+list_entry with list_for_each_entry V4L/DVB (6313): ivtv: Replace list_for_each+list_entry with list_for_each_entry V4L/DVB (6312): cx88: Replace list_for_each+list_entry with list_for_each_entry V4L/DVB (6311): dvb: Replace list_for_each+list_entry with list_for_each_entry V4L/DVB (6308): V4L: zc0301, remove bad usage of ERESTARTSYS V4L/DVB (6307): V4L: w9968cf, remove bad usage of ERESTARTSYS V4L/DVB (6306): Few clenups for saa7134 resume code V4L/DVB (6305): V4L: videobuf-core.c avoid NULL dereferences in videobuf-core V4L/DVB (6301): pvrusb: Update DEBUGIFC sysfs to kernel 2.6.13+ V4L/DVB (6300): CodingStyle cleanup V4L/DVB (6299): dvb: Add dependencies for VIDEOBUF_DVB V4L/DVB (6297): cx23885: remove wrong Kconfig selection of VIDEOBUF V4L/DVB (6296): dib0700: add support for AverMedia DVB-T Express card V4L/DVB (6295): saa7134: add autodetection for KWorld ATSC-115 V4L/DVB (6293): V4L: convert struct class_device to struct device V4L/DVB (6292): videobuf_core init always require callback implementation V4L/DVB (6291): Fix: avoid oops on some SMP machines V4L/DVB (6290): remove videobuf_set_pci_ops ...
Diffstat (limited to 'drivers/media/video/bw-qcam.c')
-rw-r--r--drivers/media/video/bw-qcam.c18
1 files changed, 16 insertions, 2 deletions
diff --git a/drivers/media/video/bw-qcam.c b/drivers/media/video/bw-qcam.c
index 7d47cbe6ad2..7f7e3d3398d 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 */
+ }
}