diff options
| author | Matthias Schwarzott <zzam@gentoo.org> | 2014-11-01 17:19:21 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2014-11-03 15:57:08 -0200 |
| commit | 0d88d0916b988d37edac35407688bc4b009c916b (patch) | |
| tree | 606bc92970d1523b92850212727481de42583caa /drivers/media/usb/cx231xx/cx231xx-i2c.c | |
| parent | 6ac825cb3e64c4831d9efa93d3497b104c42c84e (diff) | |
[media] cx231xx: use 1 byte read for i2c scan
Now cx231xx_i2c_check_for_device works like i2c_check_for_device of em28xx driver.
For me this fixes scanning of all ports but port 2.
Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/usb/cx231xx/cx231xx-i2c.c')
| -rw-r--r-- | drivers/media/usb/cx231xx/cx231xx-i2c.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/media/usb/cx231xx/cx231xx-i2c.c b/drivers/media/usb/cx231xx/cx231xx-i2c.c index 1a0d9efeb209..5a0604711be0 100644 --- a/drivers/media/usb/cx231xx/cx231xx-i2c.c +++ b/drivers/media/usb/cx231xx/cx231xx-i2c.c @@ -350,14 +350,15 @@ static int cx231xx_i2c_check_for_device(struct i2c_adapter *i2c_adap, struct cx231xx *dev = bus->dev; struct cx231xx_i2c_xfer_data req_data; int status = 0; + u8 buf[1]; /* prepare xfer_data struct */ req_data.dev_addr = msg->addr; - req_data.direction = msg->flags; + req_data.direction = I2C_M_RD; req_data.saddr_len = 0; req_data.saddr_dat = 0; - req_data.buf_size = 0; - req_data.p_buffer = NULL; + req_data.buf_size = 1; + req_data.p_buffer = buf; /* usb send command */ status = dev->cx231xx_send_usb_command(bus, &req_data); |