From: Devin Heitmueller Date: Thu, 28 May 2009 02:46:17 +0000 (-0300) Subject: V4L/DVB (11928): au0828: provide module option to disable USB speed check X-Git-Tag: firefly_0821_release~13887^2~112 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=d6a9a430a63adac71f2d23d4eb8f4eb467fc82c2;p=firefly-linux-kernel-4.4.55.git V4L/DVB (11928): au0828: provide module option to disable USB speed check Add an au0828 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 Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/video/au0828/au0828-core.c b/drivers/media/video/au0828/au0828-core.c index 2b3f64d7a7f1..3544a2f12f13 100644 --- a/drivers/media/video/au0828/au0828-core.c +++ b/drivers/media/video/au0828/au0828-core.c @@ -36,6 +36,11 @@ int au0828_debug; module_param_named(debug, au0828_debug, int, 0644); MODULE_PARM_DESC(debug, "enable debug messages"); +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"); + #define _AU0828_BULKPIPE 0x03 #define _BULKPIPESIZE 0xffff @@ -186,7 +191,7 @@ static int au0828_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 (usbdev->speed != USB_SPEED_HIGH) { + if (usbdev->speed != USB_SPEED_HIGH && disable_usb_speed_check == 0) { printk(KERN_ERR "au0828: Device initialization failed.\n"); printk(KERN_ERR "au0828: Device must be connected to a " "high-speed USB 2.0 port.\n");