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author | Hans de Goede <hdegoede@redhat.com> | 2012-06-14 09:43:11 -0300 |
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committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-07-30 18:03:14 -0300 |
commit | 86ef3f78b8bae808f41f74c506762ac345fdf893 (patch) | |
tree | 2cb97408c5e5c4df6250eba529623186e3acab8e /mm/rmap.c | |
parent | 8e2ce73e932b629c3e12546e5fffac7ee54d0093 (diff) | |
download | blackbird-op-linux-86ef3f78b8bae808f41f74c506762ac345fdf893.tar.gz blackbird-op-linux-86ef3f78b8bae808f41f74c506762ac345fdf893.zip |
[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>
Diffstat (limited to 'mm/rmap.c')
0 files changed, 0 insertions, 0 deletions