From 8949f1a2424a38a4080a2a3561a2698f215a7c4a Mon Sep 17 00:00:00 2001 From: Patrick Boettcher Date: Tue, 21 Nov 2006 05:35:10 -0300 Subject: [PATCH] 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 Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb/frontends/tda826x.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/media/dvb/frontends/tda826x.c b/drivers/media/dvb/frontends/tda826x.c index 4f01d7b47cd5..79f971dc52b6 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; -- 2.30.2