linux/drivers/media/dvb
Manu Abraham ba2780c796 [media] DVB: Query DVB frontend delivery capabilities
Currently, for any multi-standard frontend it is assumed that it just
 has a single standard capability. This is fine in some cases, but
 makes things hard when there are incompatible standards in conjuction.
 Eg: DVB-S can be seen as a subset of DVB-S2, but the same doesn't hold
 the same for DSS. This is not specific to any driver as it is, but a
 generic issue. This was handled correctly in the multiproto tree,
 while such functionality is missing from the v5 API update.

 http://www.linuxtv.org/pipermail/vdr/2008-November/018417.html

 Later on a FE_CAN_2G_MODULATION was added as a hack to workaround this
 issue in the v5 API, but that hack is incapable of addressing the
 issue, as it can be used to simply distinguish between DVB-S and
 DVB-S2 alone, or another X vs X2 modulation. If there are more systems,
 then you have a potential issue.

 An application needs to query the device capabilities before requesting
 any operation from the device.

Signed-off-by: Manu Abraham <abraham.manu@gmail.com>
Acked-by: Andreas Oberritter <obi@linuxtv.org>
Acked-by: Oliver Endriss <o.endriss@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-12-12 15:03:32 -02:00
..
b2c2 [media] drivers/media: do not use EXTRA_CFLAGS 2011-09-03 18:50:59 -03:00
bt8xx [media] drivers/media: do not use EXTRA_CFLAGS 2011-09-03 18:50:59 -03:00
ddbridge staging: Move media drivers to staging/media 2011-11-03 07:59:03 -02:00
dm1105 [media] drivers/media: do not use EXTRA_CFLAGS 2011-09-03 18:50:59 -03:00
dvb-core [media] DVB: Query DVB frontend delivery capabilities 2011-12-12 15:03:32 -02:00
dvb-usb [media] it913x: multiple devices on system. Copy ite_config to priv area 2011-12-11 09:24:38 -02:00
firewire [media] firedtv-avc: Fix compilation warnings 2011-11-24 15:04:18 -02:00
frontends [media] it913x: support for different tuner regs 2011-12-11 08:13:27 -02:00
mantis [media] Refactor Mantis DMA transfer to deliver 16Kb TS data per interrupt 2011-09-25 08:43:06 -03:00
ngene staging: Move media drivers to staging/media 2011-11-03 07:59:03 -02:00
pluto2 [media] drivers/media: do not use EXTRA_CFLAGS 2011-09-03 18:50:59 -03:00
pt1 [media] drivers/media: do not use EXTRA_CFLAGS 2011-09-03 18:50:59 -03:00
siano Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux 2011-11-06 19:44:47 -08:00
ttpci [media] av7110: wrong limiter in av7110_start_feed() 2011-11-24 14:26:02 -02:00
ttusb-budget [media] drivers/media: do not use EXTRA_CFLAGS 2011-09-03 18:50:59 -03:00
ttusb-dec [media] drivers/media: do not use EXTRA_CFLAGS 2011-09-03 18:50:59 -03:00
Kconfig [media] ddbridge: Allow compiling of the driver 2011-07-27 17:55:45 -03:00
Makefile [media] ddbridge: Allow compiling of the driver 2011-07-27 17:55:45 -03:00