linux/drivers/media
Hans de Goede 86ef3f78b8 [media] radio-si470x: Don't unnecesarily read registers on G_TUNER
Reading registers from the pcear USB dongles with the si470x causes a
loud pop (and an alsa buffer overrun). Since most radio apps periodically
call G_TUNER to update mono/stereo, signal and afc status this leads
to the music . pop . music . pop . music -> not good.

On the internet there is an howto for flashing the pcear with a newer
firmware from the silabs reference boardto fix this, but:
1) This howto relies on a special version of the driver which allows
   firmware flashing
2) We should try to avoid the answer to a bug report being upgrade your
   firmware, if at all possible
3) Windows does not suffer from the pop sounds

After a quick look at the driver I found at that the register reads are
not necessary at all, as the device gives us the necessary status through
usb interrupt packets, and the driver already uses these!

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-07-30 18:03:14 -03:00
..
common [media] tuner-xc2028: tag the usual firmwares to help dracut 2012-07-06 14:15:41 -03:00
dvb Merge branch 'v4l_for_linus' into staging/for_v3.6 2012-07-14 15:45:44 -03:00
radio [media] radio-si470x: Don't unnecesarily read registers on G_TUNER 2012-07-30 18:03:14 -03:00
rc Merge branch 'v4l_for_linus' into staging/for_v3.6 2012-07-14 15:45:44 -03:00
video [media] Fix VIDIOC_TRY_EXT_CTRLS regression 2012-07-30 11:55:24 -03:00
Kconfig [media] Kconfig: Split the core support options from the driver ones 2012-07-06 09:12:59 -03:00
Makefile
media-device.c [media] media: fix truncated entity specification 2011-12-20 09:31:50 -02:00
media-devnode.c Disintegrate and delete asm/system.h 2012-03-28 15:58:21 -07:00
media-entity.c [media] media: Add link_validate() op to check links to the sink pad 2012-05-14 08:44:11 -03:00