kernel-fxtec-pro1x/drivers
Laurent Pinchart 23867b2511 V4L/DVB (9661): uvcvideo: Commit streaming parameters when enabling the video stream
Sonix-based cameras seem to require the host to commit video streaming
parameters before selecting the alternate endpoint. While most applications
issue a VIDIOC_S_FMT ioctl before starting streaming, this is not required
by the V4L2 specification.

The problem has been noticed on Ubuntu 8.10 with applications using libv4l.
The library blocks VIDIOC_S_FMT calls when the requested format is identical
to the currently selected format. As the driver commits video streaming
parameters when initialising the device, only the first run of a
libv4l-enabled application would succeed.

For the sake of completeness, experiment showed that the camera keeps sending
12 bytes isochronous packets (header only, no data) without toggling the FID
bit if video streaming parameters haven't been committed before selecting the
alternate endpoint.

Signed-off-by: Laurent Pinchart <laurent.pinchart@skynet.be>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-12-29 17:53:36 -02:00
..
accessibility
acpi Merge branches 'tracing/ftrace', 'tracing/hw-branch-tracing' and 'tracing/ring-buffer'; commit 'v2.6.28' into tracing/core 2008-12-25 13:11:00 +01:00
amba
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atm atm: Driver for Solos PCI ADSL2+ card. 2008-12-26 01:26:11 -08:00
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eisa
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ide m68k: machw.h cleanup 2008-12-28 20:00:03 +01:00
idle
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md Merge branch 'linus' into tracing/hw-branch-tracing 2008-12-24 21:08:26 +01:00
media V4L/DVB (9661): uvcvideo: Commit streaming parameters when enabling the video stream 2008-12-29 17:53:36 -02:00
memstick
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nubus
of of/gpio: Implement of_gpio_count() 2008-12-21 14:21:14 +11:00
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pcmcia pcmcia: blackfin: fix bug - add missing ; to MODULE macro 2008-12-15 16:27:06 -08:00
pnp
power
ps3
rapidio rapidio: struct device - replace bus_id with dev_name(), dev_set_name() 2008-12-16 15:53:41 +11:00
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sn
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ssb
staging Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2008-12-28 12:49:40 -08:00
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uwb
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virtio
w1 w1: fix slave selection on big-endian systems 2008-12-23 15:58:21 -08:00
watchdog
xen xen: clean up asm/xen/hypervisor.h 2008-12-16 21:50:31 +01:00
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