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[media] af9035: i2c read fix

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Enable i2c read requests.

I2C read fix (necessary e.g. for mxl5007t tuner, because it
sends a 2 bytes for a read request, thus msg[0].len != msg[1].len).

Signed-off-by: Hans-Frieder Vogt <hfvogt@gmx.net>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans-Frieder Vogt 2012-04-01 14:11:29 -03:00 committed by Mauro Carvalho Chehab
parent 8e8a5ac763
commit 812fe6d942
1 changed files with 1 additions and 10 deletions
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11
drivers/media/dvb/dvb-usb/af9035.c
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@ -209,24 +209,15 @@ static int af9035_i2c_master_xfer(struct i2c_adapter *adap,
msg[1].len);
} else {
/* I2C */
#if 0
/*
* FIXME: Keep that code. It should work but as it is
* not tested I left it disabled and return -EOPNOTSUPP
* for the sure.
*/
u8 buf[4 + msg[0].len];
struct usb_req req = { CMD_I2C_RD, 0, sizeof(buf),
buf, msg[1].len, msg[1].buf };
buf[0] = msg[0].len;
buf[0] = msg[1].len;
buf[1] = msg[0].addr << 1;
buf[2] = 0x01;
buf[3] = 0x00;
memcpy(&buf[4], msg[0].buf, msg[0].len);
ret = af9035_ctrl_msg(d->udev, &req);
#endif
pr_debug("%s: I2C operation not supported\n", __func__);
ret = -EOPNOTSUPP;
}
} else if (num == 1 && !(msg[0].flags & I2C_M_RD)) {
if (msg[0].len > 40) {