Hans Verkuil 4e5a4d8a8e [media] vb2: fix read/write regression ... Commit 88e268702b ("vb2: Improve file I/O emulation to handle buffers in any order") broke read/write support if the size of the buffer being read/written is less than the size of the image. When the commit was tested originally I used qv4l2, which calls read() with exactly the size of the image. But if you try 'cat /dev/video0' then it will fail and typically hang after reading two buffers. This patch fixes the behavior by adding a new cur_index field that contains the index of the field currently being filled/read, or it is num_buffers in which case a new buffer needs to be dequeued. The old index field has been renamed to initial_index in order to be a bit more descriptive. This has been tested with both read and write. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Tested-by: Hans Verkuil <hans.verkuil@cisco.com> Cc: Andy Walls <awalls@md.metrocast.net> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>		2014-03-11 06:56:36 -03:00
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common	[media, edac] Change my email address	2014-02-07 08:03:07 -02:00
dvb-core	[media] dvb_frontend: better handle lna set errors	2014-03-04 14:19:34 -03:00
dvb-frontends	Linux 3.14-rc5	2014-03-11 06:55:49 -03:00
firewire	firewire: introduce fw_driver.probe and .remove methods	2013-06-09 18:15:00 +02:00
i2c	Linux 3.14-rc5	2014-03-11 06:55:49 -03:00
mmc	[media] siano: get rid of CammelCase from smscoreapi.h	2013-03-21 10:03:16 -03:00
parport	[media] v4l: Rename vb2_queue.timestamp_type as timestamp_flags	2014-03-05 16:34:14 -03:00
pci	Linux 3.14-rc5	2014-03-11 06:55:49 -03:00
platform	Linux 3.14-rc5	2014-03-11 06:55:49 -03:00
radio	[media] radio-cadet: avoid interruptible_sleep_on race	2014-02-28 14:30:30 -03:00
rc	[media, edac] Change my email address	2014-02-07 08:03:07 -02:00
tuners	[media] xc2028: silence compiler warnings	2014-03-05 15:35:25 -03:00
usb	Linux 3.14-rc5	2014-03-11 06:55:49 -03:00
v4l2-core	[media] vb2: fix read/write regression	2014-03-11 06:56:36 -03:00
Kconfig	[media] subdev autoselect only works if I2C and I2C_MUX is selected	2013-12-21 06:03:06 -02:00
Makefile	[media] move i2c files into drivers/media/i2c	2012-09-06 18:42:54 -03:00
media-device.c	[media] media: info leak in __media_device_enum_links()	2013-06-12 18:52:45 -03:00
media-devnode.c	[media] media: Add 64--32 bit compat ioctl handler	2013-03-18 20:44:36 -03:00
media-entity.c	[media] media: Check for active links on pads with MEDIA_PAD_FL_MUST_CONNECT flag	2013-12-04 15:03:45 -02:00