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gspca - main: Fix a regression with the PS3 Eye webcam

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commit f43402fa55 upstream.

When audio is present, some alternate settings were skipped.
This prevented some webcams to work, especially when bulk transfer was used.
This patch permits to use the last or only alternate setting.

Reported-by: Antonio Ospite <ospite@studenti.unina.it>
Tested-by: Antonio Ospite <ospite@studenti.unina.it>
Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Jean-François Moine
2010-10-16 13:54:05 -03:00
committed by Greg Kroah-Hartman
parent 7a2813e196
commit f553d481ae
1 changed files with 2 additions and 2 deletions
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4
drivers/media/video/gspca/gspca.c
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@@ -652,7 +652,7 @@ static struct usb_host_endpoint *get_ep(struct gspca_dev *gspca_dev)
: USB_ENDPOINT_XFER_ISOC;
i = gspca_dev->alt; /* previous alt setting */
if (gspca_dev->cam.reverse_alts) {
if (gspca_dev->audio)
if (gspca_dev->audio && i < gspca_dev->nbalt - 2)
i++;
while (++i < gspca_dev->nbalt) {
ep = alt_xfer(&intf->altsetting[i], xfer);
@@ -660,7 +660,7 @@ static struct usb_host_endpoint *get_ep(struct gspca_dev *gspca_dev)
break;
}
} else {
if (gspca_dev->audio)
if (gspca_dev->audio && i > 1)
i--;
while (--i >= 0) {
ep = alt_xfer(&intf->altsetting[i], xfer);