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| author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-01-22 18:06:44 -0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-01-22 18:06:44 -0200 |
| commit | fceb8e0cafa24afb15f841c14fbe802e42c13dfe (patch) | |
| tree | 7645da02cedb035f5f3b4883f59b529524070a32 /linux/include/media/cx25840.h | |
| parent | 8c0898eba0b293726f0d339021c14fcbcb7157af (diff) | |
| parent | 8e61aa005719a9c2c7a8a1b8d0f99da2706b4030 (diff) | |
| download | mediapointer-dvb-s2-fceb8e0cafa24afb15f841c14fbe802e42c13dfe.tar.gz mediapointer-dvb-s2-fceb8e0cafa24afb15f841c14fbe802e42c13dfe.tar.bz2 | |
merge: http://www.linuxtv.org/hg/~hverkuil/v4l-dvb-saa7146-2
From: Mauro Carvalho Chehab <mchehab@redhat.com>
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'linux/include/media/cx25840.h')
| -rw-r--r-- | linux/include/media/cx25840.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/linux/include/media/cx25840.h b/linux/include/media/cx25840.h index db431d513..2c3fbaa33 100644 --- a/linux/include/media/cx25840.h +++ b/linux/include/media/cx25840.h @@ -21,6 +21,18 @@ #ifndef _CX25840_H_ #define _CX25840_H_ +/* Note that the cx25840 driver requires that the bridge driver calls the + v4l2_subdev's init operation in order to load the driver's firmware. + Without this the audio standard detection will fail and you will + only get mono. + + Since loading the firmware is often problematic when the driver is + compiled into the kernel I recommend postponing calling this function + until the first open of the video device. Another reason for + postponing it is that loading this firmware takes a long time (seconds) + due to the slow i2c bus speed. So it will speed up the boot process if + you can avoid loading the fw as long as the video device isn't used. */ + enum cx25840_video_input { /* Composite video inputs In1-In8 */ CX25840_COMPOSITE1 = 1, |