275b2e283b
This is the logic that supports switching modes via e.g., echo radio > /sys/class/pvrusb2/sn-*/ctl_input/cur_val. To do the mode switching we need to: a) broadcast AUDC_SET_RADIO and b) issue the CX2341X_ENC_MUTE_VIDEO command to the encoder. The first is done by adding a new pvr2_i2c_op and having it trigger on input change, the second by adding this command in pvr2_encoder_start() and requesting an encoder restart on input change by setting stale_subsys_mask appropriately. The clues about AUDC_SET_RADIO and CX2341X_ENC_MUTE_VIDEO were kindly provided by Hans Verkuil on the pvrusb2 mailing list. The idea to implement mode switching this way (on input change) is due to Mike Isely. Why AUDC_SET_RADIO/VIDIOC_S_STD are used for switching? I can 't be sure, but I think this can be traced to a cornell student being the first to implement radio support in ivtv "as a different standard". I think the rest just evolved from there (it 's in the ivtv ML archives). Signed-off-by: Pantelis Koukousoulas <pakt223@freemail.gr> Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org> |
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acorn | ||
acpi | ||
amba | ||
ata | ||
atm | ||
auxdisplay | ||
base | ||
block | ||
bluetooth | ||
cdrom | ||
char | ||
clocksource | ||
connector | ||
cpufreq | ||
crypto | ||
dio | ||
dma | ||
edac | ||
eisa | ||
fc4 | ||
firmware | ||
hid | ||
hwmon | ||
i2c | ||
ide | ||
ieee1394 | ||
infiniband | ||
input | ||
isdn | ||
kvm | ||
leds | ||
macintosh | ||
mca | ||
md | ||
media | ||
message | ||
mfd | ||
misc | ||
mmc | ||
mtd | ||
net | ||
nubus | ||
oprofile | ||
parisc | ||
parport | ||
pci | ||
pcmcia | ||
pnp | ||
ps3 | ||
rapidio | ||
rtc | ||
s390 | ||
sbus | ||
scsi | ||
serial | ||
sh | ||
sn | ||
spi | ||
tc | ||
telephony | ||
usb | ||
video | ||
w1 | ||
zorro | ||
Kconfig | ||
Makefile |