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| author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-01-20 14:01:31 -0300 |
|---|---|---|
| committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-01-20 14:01:31 -0300 |
| commit | b4b7ff4b08e691656c9d77c758fc355833128ac0 (patch) | |
| tree | 82fcb00e6b918026dc9f2d1f05ed8eee83874cc0 /drivers/iio/common/st_sensors/st_sensors_core.c | |
| parent | 35acfa0fc609f2a2cd95cef4a6a9c3a5c38f1778 (diff) | |
Linux-libre 4.4-gnupck-4.4-gnu
Diffstat (limited to 'drivers/iio/common/st_sensors/st_sensors_core.c')
| -rw-r--r-- | drivers/iio/common/st_sensors/st_sensors_core.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c index 2e7fdb502..25258e2c1 100644 --- a/drivers/iio/common/st_sensors/st_sensors_core.c +++ b/drivers/iio/common/st_sensors/st_sensors_core.c @@ -44,6 +44,28 @@ st_sensors_write_data_with_mask_error: return err; } +int st_sensors_debugfs_reg_access(struct iio_dev *indio_dev, + unsigned reg, unsigned writeval, + unsigned *readval) +{ + struct st_sensor_data *sdata = iio_priv(indio_dev); + u8 readdata; + int err; + + if (!readval) + return sdata->tf->write_byte(&sdata->tb, sdata->dev, + (u8)reg, (u8)writeval); + + err = sdata->tf->read_byte(&sdata->tb, sdata->dev, (u8)reg, &readdata); + if (err < 0) + return err; + + *readval = (unsigned)readdata; + + return 0; +} +EXPORT_SYMBOL(st_sensors_debugfs_reg_access); + static int st_sensors_match_odr(struct st_sensor_settings *sensor_settings, unsigned int odr, struct st_sensor_odr_avl *odr_out) { |