leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

V4L/DVB (9926): em28xx: Fix a bug that were putting xc2028/3028 tuner to sleep

Browse Source 
The changeset 78aa52a159cf introduced a bug on em28xx: buffer setup should be
awaking xc3028. Instead, since we didn't specify the tuner mode, the device
were going to sleep, due to the lack of tuner mode when asking tuner to handle
VIDIOC_S_FREQUENCY:

xc2028 0-0061: Device is Xceive 3028 version 1.0, firmware version 2.7
xc2028 0-0061: divisor= 00 00 14 d0 (freq=83.250)
xc2028 0-0061: Putting xc2028/3028 into poweroff mode.
xc2028 0-0061: Printing sleep stack trace:
Pid: 10936, comm: mplayer Tainted: P   M      2.6.27.8 #1

Call Trace:
 [<ffffffffa0b759ea>] xc2028_sleep+0x89/0x1ab [tuner_xc2028]
 [<ffffffffa0b48fb9>] tuner_s_frequency+0xf5/0x165 [tuner]

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Mauro Carvalho Chehab 2008-12-20 07:43:34 -03:00
parent 16a5e53d09
commit 381aaba91d
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/media/video/em28xx/em28xx-video.c
View File

@ -393,9 +393,10 @@ buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size)
if (*count < EM28XX_MIN_BUF)
*count = EM28XX_MIN_BUF;
/* Ask tuner to go to analog mode */
/* Ask tuner to go to analog or radio mode */
memset(&f, 0, sizeof(f));
f.frequency = dev->ctl_freq;
f.type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
em28xx_i2c_call_clients(dev, VIDIOC_S_FREQUENCY, &f);