V4L/DVB (13178): gspca: Add support for Winbond W9967CF and W9968CF camera's

This patch adds support to gspca for the Winbond W9967CF and W9968CF
camera's. This is mostly a port of the existing v4l1 driver to gspca
(making it v4l2). But this also features fixes to the bitbanging i2c code
(send a nack not an ack after reading the last byte of a transfer), which
gets rid of the weird errors which were being seen there, and of
the smbus_refresh() hack to get around these errors.

Also the vstart settings have been tweaked to work with different
frequency filter settings.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/media/video/gspca/gspca.h b/drivers/media/video/gspca/gspca.h
index 70b1fd830876..1d761d7cefc6 100644
--- a/drivers/media/video/gspca/gspca.h
+++ b/drivers/media/video/gspca/gspca.h
@@ -58,6 +58,7 @@ struct cam {
         u8 npkt;                /* number of packets in an ISOC message
                                  * 0 is the default value: 32 packets */
         u32 input_flags;        /* value for ENUM_INPUT status flags */
+        char reverse_alts;      /* Alt settings are in high to low order */
 };
 
 struct gspca_dev;