diff options
| author | Devin Heitmueller <dheitmueller@kernellabs.com> | 2009-05-27 23:44:10 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-06-16 19:07:22 -0300 |
| commit | e2a1b79f7dc54a6f1cc8821e0c7fd68ba7568d81 (patch) | |
| tree | ae43d39b2928e068ac20dc1f54debd66cd94c3e0 | |
| parent | 0f9fba3129541822b1d75330406e62e838bf4fc1 (diff) | |
V4L/DVB (11927): em28xx: provide module option to disable USB speed check
Add an em28xx module option that allows a user to override the USB speed check.
Intended for advanced users who understand the consequences of trying to use
the device with a 12Mbps bus.
Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| -rw-r--r-- | drivers/media/video/em28xx/em28xx-cards.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/media/video/em28xx/em28xx-cards.c b/drivers/media/video/em28xx/em28xx-cards.c index b2c26293b19..36abb352b99 100644 --- a/drivers/media/video/em28xx/em28xx-cards.c +++ b/drivers/media/video/em28xx/em28xx-cards.c @@ -49,6 +49,11 @@ static unsigned int disable_ir; module_param(disable_ir, int, 0444); MODULE_PARM_DESC(disable_ir, "disable infrared remote support"); +static unsigned int disable_usb_speed_check; +module_param(disable_usb_speed_check, int, 0444); +MODULE_PARM_DESC(disable_usb_speed_check, + "override min bandwidth requirement of 480M bps"); + static unsigned int card[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = UNSET }; module_param_array(card, int, NULL, 0444); MODULE_PARM_DESC(card, "card type"); @@ -2371,7 +2376,7 @@ static int em28xx_usb_probe(struct usb_interface *interface, * video stream wouldn't likely work, since 12 Mbps is generally * not enough even for most Digital TV streams. */ - if (udev->speed != USB_SPEED_HIGH) { + if (udev->speed != USB_SPEED_HIGH && disable_usb_speed_check == 0) { printk(DRIVER_NAME ": Device initialization failed.\n"); printk(DRIVER_NAME ": Device must be connected to a high-speed" " USB 2.0 port.\n"); |