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dd89601d47
linux/drivers/media/video
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Hans Verkuil dd89601d47 V4L/DVB (9133): v4l: disconnect kernel number from minor 
The v4l core creates four different video devices (video, vbi, radio, vtx)
and each has its own range of minor numbers. However, modern devices keep
increasing the number of devices that they need so a maximum of 64 video
devices will not be enough in the future. In addition this scheme makes
it very hard to add new device types.

This patch disconnects the kernel number allocation (e.g. video0, video1,
etc.) from the actual minor number (just pick the first free minor).

This allows for much more flexibility in the future. However, it does
require the use of udev. For those who cannot use udev a new CONFIG option
was created that changes the allocation scheme back to the old behavior.

Thanks to Greg KH for suggesting this approach during the 2008 LPC.

In addition, several bugs were fixed in the ivtv and cx18 drivers: these
drivers try to allocate specific kernel numbers but that scheme contained
a bug which caused what should have been e.g. video17 to appear as e.g.
video2.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-10-12 09:37:16 -02:00
..
au0828 V4L/DVB (9049): convert tuner drivers to use dvb_frontend->callback 2008-10-12 09:37:09 -02:00
bt8xx V4L/DVB (8956): bttv: Turn video_nr, vbi_nr and radio_nr into arrays 2008-10-12 09:37:01 -02:00
cpia2 V4L/DVB (8906): v4l-dvb: fix assorted sparse warnings 2008-10-12 09:36:58 -02:00
cx18 V4L/DVB (9133): v4l: disconnect kernel number from minor 2008-10-12 09:37:16 -02:00
cx88 V4L/DVB (8904): cx88: add missing unlock_kernel 2008-10-12 09:37:14 -02:00
cx23885 V4L/DVB (9055): tuner-xc2028: Do a better job selecting firmware type 2008-10-12 09:37:09 -02:00
cx25840 V4L/DVB (8805): Steven Toth email address change 2008-09-03 18:37:21 -03:00
em28xx V4L/DVB (9133): v4l: disconnect kernel number from minor 2008-10-12 09:37:16 -02:00
et61x251 V4L/DVB (8788): v4l: replace video_get_drvdata(video_devdata(filp)) with video_drvdata(filp) 2008-10-12 09:36:54 -02:00
gspca V4L/DVB (9126): gspca: Fix some compilation warnings in m5602. 2008-10-12 09:37:16 -02:00
ivtv V4L/DVB (9133): v4l: disconnect kernel number from minor 2008-10-12 09:37:16 -02:00
ovcamchip V4L/DVB (8906): v4l-dvb: fix assorted sparse warnings 2008-10-12 09:36:58 -02:00
pvrusb2 V4L/DVB (9116): USB: remove info() macro from usb media drivers 2008-10-12 09:37:14 -02:00
pwc V4L/DVB: remove unused #include <version.h> 2008-10-12 09:37:01 -02:00
saa7134 V4L/DVB (9113): saa7134: fixes for the Asus Tiger Revision 1.00 2008-10-12 09:37:14 -02:00
sn9c102 V4L/DVB (8906): v4l-dvb: fix assorted sparse warnings 2008-10-12 09:36:58 -02:00
usbvideo V4L/DVB (9116): USB: remove info() macro from usb media drivers 2008-10-12 09:37:14 -02:00
usbvision V4L/DVB (9116): USB: remove info() macro from usb media drivers 2008-10-12 09:37:14 -02:00
uvc V4L/DVB (9036): uvcvideo: Fix control cache access when setting composite auto-update controls 2008-10-12 09:37:08 -02:00
zc0301 V4L/DVB (8788): v4l: replace video_get_drvdata(video_devdata(filp)) with video_drvdata(filp) 2008-10-12 09:36:54 -02:00
adv7170.c
adv7175.c
arv.c V4L/DVB (8786): v4l2: remove the priv field, use dev_get_drvdata instead 2008-10-12 09:36:54 -02:00
bt819.c V4L/DVB (8316): bt819: Fix a debug message 2008-07-20 07:24:26 -03:00
bt856.c V4L/DVB (8850): bt856: fix define conflict 2008-10-12 09:36:56 -02:00
bt866.c
btcx-risc.c V4L/DVB (8745): v4l2: fix a bunch of compile warnings. 2008-10-12 09:36:52 -02:00
btcx-risc.h V4L/DVB (8757): v4l-dvb: fix a bunch of sparse warnings 2008-09-03 18:37:13 -03:00
bw-qcam.c V4L/DVB (8783): v4l: add all missing video_device release callbacks 2008-10-12 09:36:54 -02:00
bw-qcam.h V4L/DVB (8780): v4l: replace the last uses of video_exclusive_open/release 2008-10-12 09:36:53 -02:00
c-qcam.c V4L/DVB (8783): v4l: add all missing video_device release callbacks 2008-10-12 09:36:54 -02:00
cafe_ccic-regs.h
cafe_ccic.c V4L/DVB (8613): v4l: move BKL down to the driver level. 2008-10-12 09:36:47 -02:00
compat_ioctl32.c V4L/DVB (8434): Fix x86_64 compilation and move some macros to v4l2-ioctl.h 2008-07-23 19:00:22 -03:00
cpia_pp.c
cpia_usb.c V4L/DVB (7518): media/video/ replace remaining __FUNCTION__ occurrences 2008-04-24 14:07:59 -03:00
cpia.c V4L/DVB (8838): CRED: Wrap task credential accesses in video input drivers 2008-10-12 09:36:55 -02:00
cpia.h V4L/DVB (8430): videodev: move some functions from v4l2-dev.h to v4l2-common.h or v4l2-ioctl.h 2008-07-23 19:00:17 -03:00
cs53l32a.c Remove newline from the description of module parameters 2008-08-01 12:46:41 -07:00
cs5345.c Remove newline from the description of module parameters 2008-08-01 12:46:41 -07:00
cs8420.h
cx2341x.c V4L/DVB (8634): v4l2: extend MPEG Encoding API with AVC and AAC 2008-10-12 09:36:47 -02:00
dabusb.c V4L/DVB (9116): USB: remove info() macro from usb media drivers 2008-10-12 09:37:14 -02:00
dabusb.h
font.h
hexium_gemini.c
hexium_orion.c
ibmmpeg2.h
indycam.c
indycam.h
ir-kbd-i2c.c V4L/DVB (9016): HVR3000/4000 Hauppauge related IR cleanups 2008-10-12 09:37:06 -02:00
Kconfig V4L/DVB (9133): v4l: disconnect kernel number from minor 2008-10-12 09:37:16 -02:00
ks0127.c V4L/DVB (8757): v4l-dvb: fix a bunch of sparse warnings 2008-09-03 18:37:13 -03:00
ks0127.h
m52790.c V4L/DVB (8487): videodev: replace videodev.h includes by videodev2.h where possible 2008-07-26 13:11:36 -03:00
Makefile V4L/DVB (8690): tuner-3036: remove driver 2008-10-12 09:36:50 -02:00
meye.c V4L/DVB (8780): v4l: replace the last uses of video_exclusive_open/release 2008-10-12 09:36:53 -02:00
meye.h V4L/DVB (8780): v4l: replace the last uses of video_exclusive_open/release 2008-10-12 09:36:53 -02:00
msp3400-driver.c V4L/DVB (8487): videodev: replace videodev.h includes by videodev2.h where possible 2008-07-26 13:11:36 -03:00
msp3400-driver.h
msp3400-kthreads.c V4L/DVB (8487): videodev: replace videodev.h includes by videodev2.h where possible 2008-07-26 13:11:36 -03:00
mt9m001.c V4L/DVB (8687): soc-camera: Move .power and .reset from soc_camera host to sensor driver 2008-10-12 09:36:50 -02:00
mt9m111.c V4L/DVB (8800): [v4l-dvb-maintainer] [PATCH] v4l: mt9m111.c make function static 2008-10-12 09:36:55 -02:00
mt9v022.c V4L/DVB (8687): soc-camera: Move .power and .reset from soc_camera host to sensor driver 2008-10-12 09:36:50 -02:00
mxb.c V4L/DVB (8945): mxb: use unique i2c adapter name 2008-10-12 09:37:00 -02:00
mxb.h
ov511.c V4L/DVB (9116): USB: remove info() macro from usb media drivers 2008-10-12 09:37:14 -02:00
ov511.h V4L/DVB (9116): USB: remove info() macro from usb media drivers 2008-10-12 09:37:14 -02:00
ov7670.c V4L/DVB (8381): ov7670: fix compile warnings 2008-07-20 07:28:27 -03:00
pms.c V4L/DVB (8783): v4l: add all missing video_device release callbacks 2008-10-12 09:36:54 -02:00
pxa_camera.c V4L/DVB: pxa-camera: Unsigned dma_chans[] cannot be negative 2008-10-12 09:37:02 -02:00
s2255drv.c V4L/DVB (8906): v4l-dvb: fix assorted sparse warnings 2008-10-12 09:36:58 -02:00
saa711x_regs.h
saa717x.c V4L/DVB (8487): videodev: replace videodev.h includes by videodev2.h where possible 2008-07-26 13:11:36 -03:00
saa5246a.c V4L/DVB (8943): saa5246a: convert i2c driver for new i2c API 2008-10-12 09:37:00 -02:00
saa5249.c V4L/DVB (8944): saa5249: convert i2c driver for new i2c API 2008-10-12 09:37:00 -02:00
saa6588.c v4l-dvb: remove legacy checks to allow support for kernels < 2.6.10 2008-07-20 07:17:52 -03:00
saa7110.c
saa7111.c
saa7114.c
saa7115.c V4L/DVB (8940): saa7115: fix saa7111(a) support 2008-10-12 09:37:00 -02:00
saa7121.h
saa7127.c V4L/DVB (8379): saa7127: Make device detection optional 2008-07-20 07:28:17 -03:00
saa7146.h
saa7146reg.h
saa7185.c
saa7191.c
saa7191.h
se401.c V4L/DVB (9116): USB: remove info() macro from usb media drivers 2008-10-12 09:37:14 -02:00
se401.h V4L/DVB (8430): videodev: move some functions from v4l2-dev.h to v4l2-common.h or v4l2-ioctl.h 2008-07-23 19:00:17 -03:00
sh_mobile_ceu_camera.c V4L/DVB (8687): soc-camera: Move .power and .reset from soc_camera host to sensor driver 2008-10-12 09:36:50 -02:00
soc_camera_platform.c V4L/DVB (8609): media: Clean up platform_driver_unregister() bogosity. 2008-08-06 06:57:30 -03:00
soc_camera.c V4L/DVB (8610): Add suspend/resume capabilities to soc_camera. 2008-08-06 06:57:32 -03:00
stk-sensor.c
stk-webcam.c V4L/DVB (9034): With the recent patch to v4l2 titled "v4l2: use register_chrdev_region 2008-10-12 09:37:08 -02:00
stk-webcam.h V4L/DVB (9034): With the recent patch to v4l2 titled "v4l2: use register_chrdev_region 2008-10-12 09:37:08 -02:00
stradis.c V4L/DVB (8783): v4l: add all missing video_device release callbacks 2008-10-12 09:36:54 -02:00
stv680.c V4L/DVB (9116): USB: remove info() macro from usb media drivers 2008-10-12 09:37:14 -02:00
stv680.h
tcm825x.c V4L/DVB (7897): TCM825x: Include invertation of image mirroring in configuration 2008-07-20 07:06:01 -03:00
tcm825x.h V4L/DVB (7897): TCM825x: Include invertation of image mirroring in configuration 2008-07-20 07:06:01 -03:00
tda7432.c V4L/DVB (8487): videodev: replace videodev.h includes by videodev2.h where possible 2008-07-26 13:11:36 -03:00
tda9840.c V4L/DVB (9033): drivers/media/video/tda9840.c: unbreak 2008-10-12 09:37:08 -02:00
tda9840.h V4L/DVB (8941): mxb/tda9840: cleanups, use module saa7115 instead of saa7111. 2008-10-12 09:37:00 -02:00
tda9875.c V4L/DVB (8487): videodev: replace videodev.h includes by videodev2.h where possible 2008-07-26 13:11:36 -03:00
tea6415c.c V4L/DVB (8630): First mxb cleanup phase 2008-10-12 09:36:47 -02:00
tea6415c.h
tea6420.c V4L/DVB (8630): First mxb cleanup phase 2008-10-12 09:36:47 -02:00
tea6420.h
tlv320aic23b.c V4L/DVB (8487): videodev: replace videodev.h includes by videodev2.h where possible 2008-07-26 13:11:36 -03:00
tuner-core.c V4L/DVB (9049): convert tuner drivers to use dvb_frontend->callback 2008-10-12 09:37:09 -02:00
tvaudio.c security: avoid calling a NULL function pointer in drivers/video/tvaudio.c 2008-10-11 09:54:07 -07:00
tveeprom.c V4L/DVB (8487): videodev: replace videodev.h includes by videodev2.h where possible 2008-07-26 13:11:36 -03:00
tvp5150_reg.h
tvp5150.c V4L/DVB (8487): videodev: replace videodev.h includes by videodev2.h where possible 2008-07-26 13:11:36 -03:00
upd64031a.c i2c: Convert remaining new-style drivers to use module aliasing 2008-05-18 20:49:40 +02:00
upd64083.c i2c: Convert remaining new-style drivers to use module aliasing 2008-05-18 20:49:40 +02:00
v4l1-compat.c V4L/DVB (8430): videodev: move some functions from v4l2-dev.h to v4l2-common.h or v4l2-ioctl.h 2008-07-23 19:00:17 -03:00
v4l2-common.c V4L/DVB (8649): v4l2: add AAC bitrate control 2008-10-12 09:36:49 -02:00
v4l2-dev.c V4L/DVB (9133): v4l: disconnect kernel number from minor 2008-10-12 09:37:16 -02:00
v4l2-int-device.c
v4l2-ioctl.c V4L/DVB (8681): v4l2-ioctl.c: fix warning 2008-09-03 18:36:41 -03:00
videobuf-core.c PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures 2008-07-24 10:47:21 -07:00
videobuf-dma-contig.c V4L/DVB (8425): v4l: fix checkpatch errors introduced by recent commits 2008-07-23 08:09:21 -03:00
videobuf-dma-sg.c V4L/DVB (8340): videobuf: Fix gather spelling 2008-07-20 07:25:32 -03:00
videobuf-dvb.c v4l-dvb: remove legacy checks to allow support for kernels < 2.6.10 2008-07-20 07:17:52 -03:00
videobuf-vmalloc.c V4L/DVB (8525): fix a few assorted spelling mistakes. 2008-07-27 11:07:13 -03:00
videocodec.c V4L/DVB (7580): Fix concurrent read from /proc/videocodecs 2008-04-24 14:09:40 -03:00
videocodec.h
vino.c V4L/DVB (8788): v4l: replace video_get_drvdata(video_devdata(filp)) with video_drvdata(filp) 2008-10-12 09:36:54 -02:00
vino.h
vivi.c V4L/DVB (8613): v4l: move BKL down to the driver level. 2008-10-12 09:36:47 -02:00
vp27smpx.c V4L/DVB (8487): videodev: replace videodev.h includes by videodev2.h where possible 2008-07-26 13:11:36 -03:00
vpx3220.c V4L/DVB (8856): v4l: fix assorted compile warnings/errors 2008-10-12 09:36:56 -02:00
w9966.c V4L/DVB (8788): v4l: replace video_get_drvdata(video_devdata(filp)) with video_drvdata(filp) 2008-10-12 09:36:54 -02:00
w9968cf_decoder.h
w9968cf_vpp.h
w9968cf.c V4L/DVB (8883): w9968cf: Fix order of usb_alloc_urb validation 2008-09-29 08:24:57 -03:00
w9968cf.h V4L/DVB (8487): videodev: replace videodev.h includes by videodev2.h where possible 2008-07-26 13:11:36 -03:00
wm8739.c V4L/DVB (8789): wm8739: remove wrong kfree 2008-09-10 23:18:32 -03:00
wm8775.c V4L/DVB (8487): videodev: replace videodev.h includes by videodev2.h where possible 2008-07-26 13:11:36 -03:00
zoran_card.c V4L/DVB (8957): zr36067: Restore the default pixel format 2008-10-04 22:38:39 -03:00
zoran_card.h V4L/DVB (8499): zr36067: Rework device memory allocation 2008-07-26 13:18:27 -03:00
zoran_device.c V4L/DVB (8906): v4l-dvb: fix assorted sparse warnings 2008-10-12 09:36:58 -02:00
zoran_device.h V4L/DVB (8906): v4l-dvb: fix assorted sparse warnings 2008-10-12 09:36:58 -02:00
zoran_driver.c V4L/DVB (8962): zr36067: VIDIOC_S_FMT returns the colorspace value 2008-10-12 09:37:02 -02:00
zoran_procfs.c drivers: use non-racy method for proc entries creation (2) 2008-04-29 08:06:22 -07:00
zoran_procfs.h
zoran.h V4L/DVB (7968): zoran: endianness annotations 2008-06-05 06:35:52 -03:00
zr364xx.c V4L/DVB (9116): USB: remove info() macro from usb media drivers 2008-10-12 09:37:14 -02:00
zr36016.c
zr36016.h
zr36050.c
zr36050.h
zr36057.h
zr36060.c
zr36060.h