linux/drivers/media/usb
Mauro Carvalho Chehab 8b2aea7878 [media] em28xx: prefer bulk mode on webcams
Using bulk mode allows more than one webcam, as the maximum fps
is low at 640x480 resolution. So, prefer it, if the device is
a webcam.

Tested with Silvercrest 1.3 Mpixel webcam (em2710) on both bulk and isoc
modes.

Tested analog with HVR-950 model 65201/A1C0 (em2883), where only ISOC
endpoints are available for both DVB and Analog.

Tested on Hauppauge WinTV USB 2 (em2840) on both bulk and isoc modes.

It should be noticed that enabling bulk mode by default with TV boards
is a bad idea; what happens is that, while with ISOC the USB logic will
prevent the concurrent usage of two devices that spends more than 100%
of the USB2 traffic, it doesn't care with bulk transfers.

On my tests, I started two streams, one with a WinTV at 640x480x30fps
and the other one with a Silvercrest webcam at 640x480, on a lower fps)
both on bulk mode. One of the streams always silently failed.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-12-23 17:24:30 -02:00
..
au0828 [media] v4l: Convert drivers to use monotonic timestamps 2012-12-21 10:56:43 -02:00
b2c2
cpia2 [media] v4l: Tell user space we're using monotonic timestamps 2012-12-21 11:20:51 -02:00
cx231xx [media] v4l: Convert drivers to use monotonic timestamps 2012-12-21 10:56:43 -02:00
dvb-usb [media] dw2102: Declare MODULE_FIRMWARE usage 2012-12-04 14:42:09 -02:00
dvb-usb-v2 [media] rtl28xxu: add NOXON DAB/DAB+ USB dongle rev 2 2012-11-28 09:51:22 -02:00
em28xx [media] em28xx: prefer bulk mode on webcams 2012-12-23 17:24:30 -02:00
gspca [media] gspca_sonixj: Add a small delay after i2c_w1 2012-12-21 13:40:19 -02:00
hdpvr [media] drivers/media/usb/hdpvr/hdpvr-core.c: fix error return code 2012-11-22 14:22:31 -02:00
pvrusb2 [media] pvr2: fix minor storage 2012-11-21 18:10:33 -02:00
pwc [media] v4l: Convert drivers to use monotonic timestamps 2012-12-21 10:56:43 -02:00
s2255 [media] v4l: Convert drivers to use monotonic timestamps 2012-12-21 10:56:43 -02:00
siano [media] siano: fix RC compilation 2012-11-07 11:09:08 +01:00
sn9c102 [media] v4l: Tell user space we're using monotonic timestamps 2012-12-21 11:20:51 -02:00
stk1160 [media] v4l: Convert drivers to use monotonic timestamps 2012-12-21 10:56:43 -02:00
stkwebcam [media] stk-webcam: Add an upside down dmi table, and add the Asus G1 to it 2012-12-21 13:34:30 -02:00
tlg2300 [media] v4l: Convert drivers to use monotonic timestamps 2012-12-21 10:56:43 -02:00
tm6000 [media] tm6000-dvb: Fix module unload 2012-12-21 18:45:31 -02:00
ttusb-budget
ttusb-dec
usbvision [media] v4l: Tell user space we're using monotonic timestamps 2012-12-21 11:20:51 -02:00
uvc [media] uvcvideo: Fix control value clamping for unsigned integer controls 2012-11-28 10:31:14 -02:00
zr364xx [media] v4l: Convert drivers to use monotonic timestamps 2012-12-21 10:56:43 -02:00
Kconfig [media] au0828: remove forced dependency of VIDEO_AU0828 on VIDEO_V4L2 2012-12-17 14:31:26 -02:00
Makefile