diff options
Diffstat (limited to 'drivers/media/video/tuner-i2c.h')
| -rw-r--r-- | drivers/media/video/tuner-i2c.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/media/video/tuner-i2c.h b/drivers/media/video/tuner-i2c.h index b5ac189ba40f..d7cf72c3fd71 100644 --- a/drivers/media/video/tuner-i2c.h +++ b/drivers/media/video/tuner-i2c.h @@ -46,6 +46,19 @@ static inline int tuner_i2c_xfer_recv(struct tuner_i2c_props *props, char *buf, return (ret == 1) ? len : ret; } +static inline int tuner_i2c_xfer_send_recv(struct tuner_i2c_props *props, + char *obuf, int olen, + char *ibuf, int ilen) +{ + struct i2c_msg msg[2] = { { .addr = props->addr, .flags = 0, + .buf = obuf, .len = olen }, + { .addr = props->addr, .flags = I2C_M_RD, + .buf = ibuf, .len = ilen } }; + int ret = i2c_transfer(props->adap, msg, 2); + + return (ret == 2) ? ilen : ret; +} + #ifndef __TUNER_DRIVER_H__ #define tuner_warn(fmt, arg...) do { \ printk(KERN_WARNING "%s %d-%04x: " fmt, PREFIX, \ |