diff options
| author | Oleh Kravchenko <oleg@kaa.org.ua> | 2017-10-07 22:36:52 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-11-08 10:08:35 +0100 |
| commit | 90400ec14408d06d20538782543151dea613ae68 (patch) | |
| tree | 5dbf06e48750bb55273c4e2ecc3a31dd191ba72b | |
| parent | 64674bc8eeadb532cfc18e19a500294447d4bb2b (diff) | |
cx231xx: Fix I2C on Internal Master 3 Bus
[ Upstream commit 6c5da8031a3abfad259190d35f83d89568b72ee2 ]
Internal Master 3 Bus can send and receive only 4 bytes per time.
Signed-off-by: Oleh Kravchenko <oleg@kaa.org.ua>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/media/usb/cx231xx/cx231xx-core.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/media/usb/cx231xx/cx231xx-core.c b/drivers/media/usb/cx231xx/cx231xx-core.c index 8b099fe1d592..71b65ab573ac 100644 --- a/drivers/media/usb/cx231xx/cx231xx-core.c +++ b/drivers/media/usb/cx231xx/cx231xx-core.c @@ -356,7 +356,12 @@ int cx231xx_send_vendor_cmd(struct cx231xx *dev, */ if ((ven_req->wLength > 4) && ((ven_req->bRequest == 0x4) || (ven_req->bRequest == 0x5) || - (ven_req->bRequest == 0x6))) { + (ven_req->bRequest == 0x6) || + + /* Internal Master 3 Bus can send + * and receive only 4 bytes per time + */ + (ven_req->bRequest == 0x2))) { unsend_size = 0; pdata = ven_req->pBuff; |