Extend support to read/write byte data from/to the device using debugfs iio interface.
Signed-off-by: Nishant Malpani <[email protected]> --- No changes in v2 --- drivers/iio/gyro/adxrs290.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/drivers/iio/gyro/adxrs290.c b/drivers/iio/gyro/adxrs290.c index 4099b8917d3e..132fd16789f0 100644 --- a/drivers/iio/gyro/adxrs290.c +++ b/drivers/iio/gyro/adxrs290.c @@ -434,6 +434,24 @@ static int adxrs290_read_avail(struct iio_dev *indio_dev, } } +static int adxrs290_reg_access(struct iio_dev *indio_dev, unsigned int reg, + unsigned int writeval, unsigned int *readval) +{ + struct adxrs290_state *st = iio_priv(indio_dev); + int ret; + + if (!readval) + return adxrs290_spi_write_reg(st->spi, reg, writeval); + + ret = spi_w8r8(st->spi, ADXRS290_READ_REG(reg)); + if (ret < 0) + return ret; + + *readval = ret; + + return 0; +} + static int adxrs290_data_rdy_trigger_set_state(struct iio_trigger *trig, bool state) { struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig); @@ -546,6 +564,7 @@ static const struct iio_info adxrs290_info = { .read_raw = &adxrs290_read_raw, .write_raw = &adxrs290_write_raw, .read_avail = &adxrs290_read_avail, + .debugfs_reg_access = &adxrs290_reg_access, }; static int adxrs290_probe_trigger(struct iio_dev *indio_dev) -- 2.20.1
