diff options
| author | Antti Palosaari <crope@iki.fi> | 2013-07-11 17:19:32 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2013-08-20 20:59:18 +0200 |
| commit | d0fadf40338fc551f4bbb82fc4c223d2a8de2c1d (patch) | |
| tree | e5bb1902f9a8e5c924228d6ea014994c7bbb8893 /drivers/staging | |
| parent | [media] msi3101: enhance sampling results (diff) | |
| download | linux-d0fadf40338fc551f4bbb82fc4c223d2a8de2c1d.tar.xz linux-d0fadf40338fc551f4bbb82fc4c223d2a8de2c1d.zip | |
[media] msi3101: fix stream re-start halt
Restarting stream fails quite often. Small delay is between urb killing
and stream stop command - likely to give harware some time to process
killed urbs.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers/staging')
| -rw-r--r-- | drivers/staging/media/msi3101/sdr-msi3101.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/staging/media/msi3101/sdr-msi3101.c b/drivers/staging/media/msi3101/sdr-msi3101.c index c73f1d9979a9..2180bf88842f 100644 --- a/drivers/staging/media/msi3101/sdr-msi3101.c +++ b/drivers/staging/media/msi3101/sdr-msi3101.c @@ -959,7 +959,7 @@ static int msi3101_ctrl_msg(struct msi3101_state *s, u8 cmd, u32 data) msi3101_dbg_usb_control_msg(s->udev, request, requesttype, value, index, NULL, 0); - ret = usb_control_msg(s->udev, usb_rcvctrlpipe(s->udev, 0), + ret = usb_control_msg(s->udev, usb_sndctrlpipe(s->udev, 0), request, requesttype, value, index, NULL, 0, 2000); if (ret) @@ -1300,12 +1300,15 @@ static int msi3101_stop_streaming(struct vb2_queue *vq) if (mutex_lock_interruptible(&s->v4l2_lock)) return -ERESTARTSYS; - msi3101_ctrl_msg(s, CMD_STOP_STREAMING, 0); - if (s->udev) msi3101_isoc_cleanup(s); msi3101_cleanup_queued_bufs(s); + + /* according to tests, at least 700us delay is required */ + msleep(20); + msi3101_ctrl_msg(s, CMD_STOP_STREAMING, 0); + mutex_unlock(&s->v4l2_lock); return 0; |