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authorHans de Goede <hdegoede@redhat.com>2011-12-29 19:09:21 -0200
committerLinus Torvalds <torvalds@linux-foundation.org>2011-12-29 16:29:00 -0800
commit757e55c23dc62eb5adf45368a72f6b26d6a71ae5 (patch)
treece4ea7a534f5d3808735cf827064fd8695559d30
parent371de6e4e0042adf4f9b54c414154f57414ddd37 (diff)
downloadlinux-linaro-757e55c23dc62eb5adf45368a72f6b26d6a71ae5.tar.gz
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 <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--drivers/media/video/gspca/gspca.c4
1 files changed, 2 insertions, 2 deletions
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;