diff options
| author | Antti Palosaari <crope@iki.fi> | 2013-06-03 00:41:46 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2013-06-13 16:39:58 +0200 |
| commit | 4b9a4a666c271bcb10469f61515b3c518ccc668f (patch) | |
| tree | 9dd30ab280468005aa5912689616d8e3272c05b2 /drivers/media/radio | |
| parent | [media] radio-keene: set initial frequency (diff) | |
| download | linux-4b9a4a666c271bcb10469f61515b3c518ccc668f.tar.xz linux-4b9a4a666c271bcb10469f61515b3c518ccc668f.zip | |
[media] radio-keene: add delay in order to settle hardware
It was found by trial and error testing that at least 11 ms delay is
needed before first I/O, otherwise device will skip given command.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/radio')
| -rw-r--r-- | drivers/media/radio/radio-keene.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/media/radio/radio-keene.c b/drivers/media/radio/radio-keene.c index 99da3d4f8d95..21db23b196be 100644 --- a/drivers/media/radio/radio-keene.c +++ b/drivers/media/radio/radio-keene.c @@ -382,6 +382,8 @@ static int usb_keene_probe(struct usb_interface *intf, video_set_drvdata(&radio->vdev, radio); set_bit(V4L2_FL_USE_FH_PRIO, &radio->vdev.flags); + /* at least 11ms is needed in order to settle hardware */ + msleep(20); keene_cmd_main(radio, 95.16 * FREQ_MUL, false); retval = video_register_device(&radio->vdev, VFL_TYPE_RADIO, -1); |