From 3f72fef8e0c14f63c1c530cd571a89491f997650 Mon Sep 17 00:00:00 2001 From: Jean-Francois Moine Date: Fri, 16 Jan 2009 12:57:28 +0100 Subject: gspca - spca561: Optimize the isoc scanning function. From: Jean-Francois Moine Priority: normal Signed-off-by: Jean-Francois Moine --- linux/drivers/media/video/gspca/spca561.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) (limited to 'linux/drivers/media/video/gspca') diff --git a/linux/drivers/media/video/gspca/spca561.c b/linux/drivers/media/video/gspca/spca561.c index b991ddde5..bcc8e863d 100644 --- a/linux/drivers/media/video/gspca/spca561.c +++ b/linux/drivers/media/video/gspca/spca561.c @@ -141,7 +141,6 @@ static const struct v4l2_pix_format sif_072a_mode[] = { #define SPCA561_OFFSET_WIN1GBAVE 14 #define SPCA561_OFFSET_FREQ 15 #define SPCA561_OFFSET_VSYNC 16 -#define SPCA561_OFFSET_DATA 1 #define SPCA561_INDEX_I2C_BASE 0x8800 #define SPCA561_SNAPBIT 0x20 #define SPCA561_SNAPCTRL 0x40 @@ -873,12 +872,11 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev, { struct sd *sd = (struct sd *) gspca_dev; - switch (data[0]) { /* sequence number */ + len--; + switch (*data++) { /* sequence number */ case 0: /* start of frame */ frame = gspca_frame_add(gspca_dev, LAST_PACKET, frame, data, 0); - data += SPCA561_OFFSET_DATA; - len -= SPCA561_OFFSET_DATA; if (data[1] & 0x10) { /* compressed bayer */ gspca_frame_add(gspca_dev, FIRST_PACKET, @@ -899,8 +897,6 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev, case 0xff: /* drop (empty mpackets) */ return; } - data++; - len--; gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len); } -- cgit v1.2.3