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yaml
---
r: 161483
b: refs/heads/master
c: 00b581e
h: refs/heads/master
i:
  161481: a59f55f
  161479: 4c08628
v: v3
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Brian Johnson authored and Mauro Carvalho Chehab committed Sep 12, 2009
1 parent 06da5fc commit 57a94cd
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Showing 2 changed files with 21 additions and 19 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: f3d6f63302bfcd7462d46bd1fe44146c971634d4
refs/heads/master: 00b581ef0d31db9c28215254b64f3890c7c9f939
38 changes: 20 additions & 18 deletions trunk/drivers/media/video/gspca/sn9c20x.c
Original file line number Diff line number Diff line change
Expand Up @@ -1096,12 +1096,12 @@ int i2c_w(struct gspca_dev *gspca_dev, const u8 *buffer)
reg_r(gspca_dev, 0x10c0, 1);
if (gspca_dev->usb_buf[0] & 0x04) {
if (gspca_dev->usb_buf[0] & 0x08)
return -1;
return -EIO;
return 0;
}
msleep(1);
}
return -1;
return -EIO;
}

int i2c_w1(struct gspca_dev *gspca_dev, u8 reg, u8 val)
Expand Down Expand Up @@ -1152,22 +1152,23 @@ int i2c_r1(struct gspca_dev *gspca_dev, u8 reg, u8 *val)
struct sd *sd = (struct sd *) gspca_dev;
u8 row[8];

row[0] = 0x81 | 0x10;
row[0] = 0x81 | (1 << 4);
row[1] = sd->i2c_addr;
row[2] = reg;
row[3] = 0;
row[4] = 0;
row[5] = 0;
row[6] = 0;
row[7] = 0x10;
reg_w(gspca_dev, 0x10c0, row, 8);
msleep(1);
row[0] = 0x81 | (2 << 4) | 0x02;
if (i2c_w(gspca_dev, row) < 0)
return -EIO;
row[0] = 0x81 | (1 << 4) | 0x02;
row[2] = 0;
reg_w(gspca_dev, 0x10c0, row, 8);
msleep(1);
reg_r(gspca_dev, 0x10c2, 5);
*val = gspca_dev->usb_buf[3];
if (i2c_w(gspca_dev, row) < 0)
return -EIO;
if (reg_r(gspca_dev, 0x10c2, 5) < 0)
return -EIO;
*val = gspca_dev->usb_buf[4];
return 0;
}

Expand All @@ -1176,22 +1177,23 @@ int i2c_r2(struct gspca_dev *gspca_dev, u8 reg, u16 *val)
struct sd *sd = (struct sd *) gspca_dev;
u8 row[8];

row[0] = 0x81 | 0x10;
row[0] = 0x81 | (1 << 4);
row[1] = sd->i2c_addr;
row[2] = reg;
row[3] = 0;
row[4] = 0;
row[5] = 0;
row[6] = 0;
row[7] = 0x10;
reg_w(gspca_dev, 0x10c0, row, 8);
msleep(1);
row[0] = 0x81 | (3 << 4) | 0x02;
if (i2c_w(gspca_dev, row) < 0)
return -EIO;
row[0] = 0x81 | (2 << 4) | 0x02;
row[2] = 0;
reg_w(gspca_dev, 0x10c0, row, 8);
msleep(1);
reg_r(gspca_dev, 0x10c2, 5);
*val = (gspca_dev->usb_buf[2] << 8) | gspca_dev->usb_buf[3];
if (i2c_w(gspca_dev, row) < 0)
return -EIO;
if (reg_r(gspca_dev, 0x10c2, 5) < 0)
return -EIO;
*val = (gspca_dev->usb_buf[3] << 8) | gspca_dev->usb_buf[4];
return 0;
}

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