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authorPatrick Boettcher <pb@linuxtv.org>2006-11-21 05:35:10 -0300
committerMauro Carvalho Chehab <mchehab@infradead.org>2006-12-10 09:05:02 -0200
commit8949f1a2424a38a4080a2a3561a2698f215a7c4a (patch)
tree206002c4a28df89c339f86c8a89d3e391e8e4250
parent499c18698990463b84c23ddc98104517fe759ee8 (diff)
V4L/DVB (4864): TDA826x I2C read with 2 messages
Added a dump I2C message to the TDA826x-driver to fix I2C read for identification with ttusb2-driver. Signed-off-by: Patrick Boettcher <pb@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
-rw-r--r--drivers/media/dvb/frontends/tda826x.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/media/dvb/frontends/tda826x.c b/drivers/media/dvb/frontends/tda826x.c
index 4f01d7b47cd..79f971dc52b 100644
--- a/drivers/media/dvb/frontends/tda826x.c
+++ b/drivers/media/dvb/frontends/tda826x.c
@@ -132,18 +132,21 @@ struct dvb_frontend *tda826x_attach(struct dvb_frontend *fe, int addr, struct i2
{
struct tda826x_priv *priv = NULL;
u8 b1 [] = { 0, 0 };
- struct i2c_msg msg = { .addr = addr, .flags = I2C_M_RD, .buf = b1, .len = 2 };
+ struct i2c_msg msg[2] = {
+ { .addr = addr, .flags = 0, .buf = NULL, .len = 0 },
+ { .addr = addr, .flags = I2C_M_RD, .buf = b1, .len = 2 }
+ };
int ret;
dprintk("%s:\n", __FUNCTION__);
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 1);
- ret = i2c_transfer (i2c, &msg, 1);
+ ret = i2c_transfer (i2c, msg, 2);
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 0);
- if (ret != 1)
+ if (ret != 2)
return NULL;
if (!(b1[1] & 0x80))
return NULL;