From: Hans de Goede Date: Thu, 29 Dec 2011 21:09:21 +0000 (-0200) Subject: gspca: Fix bulk mode cameras no longer working (regression fix) X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=757e55c23dc62eb5adf45368a72f6b26d6a71ae5;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git gspca: Fix bulk mode cameras no longer working (regression fix) The new iso bandwidth calculation code accidentally has broken support for bulk mode cameras. This has broken the following drivers: finepix, jeilinj, ovfx2, ov534, ov534_9, se401, sq905, sq905c, sq930x, stv0680, vicam. Thix patch fixes this. Fix tested with: se401, sq905, sq905c, stv0680 & vicam cams. Signed-off-by: Hans de Goede Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Linus Torvalds --- diff --git a/drivers/media/video/gspca/gspca.c b/drivers/media/video/gspca/gspca.c index 881e04c7ffe..512f32ff446 100644 --- a/drivers/media/video/gspca/gspca.c +++ b/drivers/media/video/gspca/gspca.c @@ -838,13 +838,13 @@ static int gspca_init_transfer(struct gspca_dev *gspca_dev) gspca_dev->usb_err = 0; /* do the specific subdriver stuff before endpoint selection */ - gspca_dev->alt = 0; + intf = usb_ifnum_to_if(gspca_dev->dev, gspca_dev->iface); + gspca_dev->alt = gspca_dev->cam.bulk ? intf->num_altsetting : 0; if (gspca_dev->sd_desc->isoc_init) { ret = gspca_dev->sd_desc->isoc_init(gspca_dev); if (ret < 0) goto unlock; } - intf = usb_ifnum_to_if(gspca_dev->dev, gspca_dev->iface); xfer = gspca_dev->cam.bulk ? USB_ENDPOINT_XFER_BULK : USB_ENDPOINT_XFER_ISOC;