From 43d55e928f7b7bc1f2195f7b9997529c7864fb95 Mon Sep 17 00:00:00 2001 From: Trent Piepho Date: Sun, 15 Apr 2007 06:09:56 -0700 Subject: usbvision: fix confusion over 7-bit vs 8-bit TDDA9887 addresses From: Trent Piepho The code was testing an 8-bit address against a 7-bit address. Will the confusion of the two never cease? Biggest flaw of the I2C protocol: the R/W bit is the LSB instead of the MSB. No one can ever agree if addresses are 7-bits and the R/W bit follows them, or if they are 8-bit and the R/W bit is OR-ed into the address byte. If the R/W bit was first, it wouldn't make any difference! Signed-off-by: Trent Piepho --- linux/drivers/media/video/usbvision/usbvision-i2c.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'linux/drivers') diff --git a/linux/drivers/media/video/usbvision/usbvision-i2c.c b/linux/drivers/media/video/usbvision/usbvision-i2c.c index 2b7ee0bec..a0eed8633 100644 --- a/linux/drivers/media/video/usbvision/usbvision-i2c.c +++ b/linux/drivers/media/video/usbvision/usbvision-i2c.c @@ -299,9 +299,10 @@ static int attach_inform(struct i2c_client *client) usbvision = i2c_get_adapdata(client->adapter); switch (client->addr << 1) { - case 0x86: - case 0x43: - case 0x4b: + case 0x42 << 1: + case 0x43 << 1: + case 0x4a << 1: + case 0x4b << 1: { struct tuner_setup tun_setup; -- cgit v1.2.3