From: Jonathan Cameron Date: Sun, 22 Jun 2014 19:59:00 +0000 (+0100) Subject: iio: adis: Switch sampling frequency attr to core support. X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=82695ef549b5299d3d9e088d6648289bda8ef3d8;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git iio: adis: Switch sampling frequency attr to core support. By using the info_mask_shared_by_all element of the channel spec, acce to the sampling frequency becomes available to in kernel users of the driver. It also shortens and simplifies the code. This particular conversion was made more complicated by the shared library and the fact that a number of the drivers do not actually have support for setting or reading the sampling frequency. The hardware, in those cases investigated supports it. It's just never been implemented. Signed-off-by: Jonathan Cameron Reviewed-by: Hartmut Knaack Acked-by: Lars-Peter Clausen --- diff --git a/drivers/iio/gyro/adis16260.c b/drivers/iio/gyro/adis16260.c index 22b6fb80fa1a..75fe0edd3d0f 100644 --- a/drivers/iio/gyro/adis16260.c +++ b/drivers/iio/gyro/adis16260.c @@ -101,65 +101,6 @@ #define ADIS16260_SCAN_TEMP 3 #define ADIS16260_SCAN_ANGL 4 -static ssize_t adis16260_read_frequency(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - struct iio_dev *indio_dev = dev_to_iio_dev(dev); - struct adis *adis = iio_priv(indio_dev); - int ret, len = 0; - u16 t; - int sps; - ret = adis_read_reg_16(adis, ADIS16260_SMPL_PRD, &t); - if (ret) - return ret; - - if (spi_get_device_id(adis->spi)->driver_data) /* If an adis16251 */ - sps = (t & ADIS16260_SMPL_PRD_TIME_BASE) ? 8 : 256; - else - sps = (t & ADIS16260_SMPL_PRD_TIME_BASE) ? 66 : 2048; - sps /= (t & ADIS16260_SMPL_PRD_DIV_MASK) + 1; - len = sprintf(buf, "%d\n", sps); - return len; -} - -static ssize_t adis16260_write_frequency(struct device *dev, - struct device_attribute *attr, - const char *buf, - size_t len) -{ - struct iio_dev *indio_dev = dev_to_iio_dev(dev); - struct adis *adis = iio_priv(indio_dev); - unsigned int val; - int ret; - u8 t; - - ret = kstrtouint(buf, 10, &val); - if (ret) - return ret; - - mutex_lock(&indio_dev->mlock); - if (spi_get_device_id(adis->spi)->driver_data) - t = 256 / val; - else - t = 2048 / val; - - if (t > ADIS16260_SMPL_PRD_DIV_MASK) - t = ADIS16260_SMPL_PRD_DIV_MASK; - else if (t > 0) - t--; - - if (t >= 0x0A) - adis->spi->max_speed_hz = ADIS16260_SPI_SLOW; - else - adis->spi->max_speed_hz = ADIS16260_SPI_FAST; - ret = adis_write_reg_8(adis, ADIS16260_SMPL_PRD, t); - - mutex_unlock(&indio_dev->mlock); - - return ret ? ret : len; -} - /* Power down the device */ static int adis16260_stop_device(struct iio_dev *indio_dev) { @@ -174,18 +115,19 @@ static int adis16260_stop_device(struct iio_dev *indio_dev) return ret; } -static IIO_DEV_ATTR_SAMP_FREQ(S_IWUSR | S_IRUGO, - adis16260_read_frequency, - adis16260_write_frequency); - static const struct iio_chan_spec adis16260_channels[] = { ADIS_GYRO_CHAN(X, ADIS16260_GYRO_OUT, ADIS16260_SCAN_GYRO, BIT(IIO_CHAN_INFO_CALIBBIAS) | - BIT(IIO_CHAN_INFO_CALIBSCALE), 14), - ADIS_INCLI_CHAN(X, ADIS16260_ANGL_OUT, ADIS16260_SCAN_ANGL, 0, 14), - ADIS_TEMP_CHAN(ADIS16260_TEMP_OUT, ADIS16260_SCAN_TEMP, 12), - ADIS_SUPPLY_CHAN(ADIS16260_SUPPLY_OUT, ADIS16260_SCAN_SUPPLY, 12), - ADIS_AUX_ADC_CHAN(ADIS16260_AUX_ADC, ADIS16260_SCAN_AUX_ADC, 12), + BIT(IIO_CHAN_INFO_CALIBSCALE), + BIT(IIO_CHAN_INFO_SAMP_FREQ), 14), + ADIS_INCLI_CHAN(X, ADIS16260_ANGL_OUT, ADIS16260_SCAN_ANGL, 0, + BIT(IIO_CHAN_INFO_SAMP_FREQ), 14), + ADIS_TEMP_CHAN(ADIS16260_TEMP_OUT, ADIS16260_SCAN_TEMP, + BIT(IIO_CHAN_INFO_SAMP_FREQ), 12), + ADIS_SUPPLY_CHAN(ADIS16260_SUPPLY_OUT, ADIS16260_SCAN_SUPPLY, + BIT(IIO_CHAN_INFO_SAMP_FREQ), 12), + ADIS_AUX_ADC_CHAN(ADIS16260_AUX_ADC, ADIS16260_SCAN_AUX_ADC, + BIT(IIO_CHAN_INFO_SAMP_FREQ), 12), IIO_CHAN_SOFT_TIMESTAMP(5), }; @@ -258,6 +200,20 @@ static int adis16260_read_raw(struct iio_dev *indio_dev, *val = val16; return IIO_VAL_INT; + case IIO_CHAN_INFO_SAMP_FREQ: + ret = adis_read_reg_16(adis, ADIS16260_SMPL_PRD, &val16); + if (ret) + return ret; + + if (spi_get_device_id(adis->spi)->driver_data) + /* If an adis16251 */ + *val = (val16 & ADIS16260_SMPL_PRD_TIME_BASE) ? + 8 : 256; + else + *val = (val16 & ADIS16260_SMPL_PRD_TIME_BASE) ? + 66 : 2048; + *val /= (val16 & ADIS16260_SMPL_PRD_DIV_MASK) + 1; + return IIO_VAL_INT; } return -EINVAL; } @@ -269,7 +225,9 @@ static int adis16260_write_raw(struct iio_dev *indio_dev, long mask) { struct adis *adis = iio_priv(indio_dev); + int ret; u8 addr; + u8 t; switch (mask) { case IIO_CHAN_INFO_CALIBBIAS: @@ -284,21 +242,31 @@ static int adis16260_write_raw(struct iio_dev *indio_dev, addr = adis16260_addresses[chan->scan_index][1]; return adis_write_reg_16(adis, addr, val); + case IIO_CHAN_INFO_SAMP_FREQ: + mutex_lock(&indio_dev->mlock); + if (spi_get_device_id(adis->spi)->driver_data) + t = 256 / val; + else + t = 2048 / val; + + if (t > ADIS16260_SMPL_PRD_DIV_MASK) + t = ADIS16260_SMPL_PRD_DIV_MASK; + else if (t > 0) + t--; + + if (t >= 0x0A) + adis->spi->max_speed_hz = ADIS16260_SPI_SLOW; + else + adis->spi->max_speed_hz = ADIS16260_SPI_FAST; + ret = adis_write_reg_8(adis, ADIS16260_SMPL_PRD, t); + + mutex_unlock(&indio_dev->mlock); + return ret; } return -EINVAL; } -static struct attribute *adis16260_attributes[] = { - &iio_dev_attr_sampling_frequency.dev_attr.attr, - NULL -}; - -static const struct attribute_group adis16260_attribute_group = { - .attrs = adis16260_attributes, -}; - static const struct iio_info adis16260_info = { - .attrs = &adis16260_attribute_group, .read_raw = &adis16260_read_raw, .write_raw = &adis16260_write_raw, .update_scan_mode = adis_update_scan_mode, diff --git a/drivers/staging/iio/accel/adis16201_core.c b/drivers/staging/iio/accel/adis16201_core.c index 2105576fa77c..50ba1fa7f98a 100644 --- a/drivers/staging/iio/accel/adis16201_core.c +++ b/drivers/staging/iio/accel/adis16201_core.c @@ -131,17 +131,17 @@ static int adis16201_write_raw(struct iio_dev *indio_dev, } static const struct iio_chan_spec adis16201_channels[] = { - ADIS_SUPPLY_CHAN(ADIS16201_SUPPLY_OUT, ADIS16201_SCAN_SUPPLY, 12), - ADIS_TEMP_CHAN(ADIS16201_TEMP_OUT, ADIS16201_SCAN_TEMP, 12), + ADIS_SUPPLY_CHAN(ADIS16201_SUPPLY_OUT, ADIS16201_SCAN_SUPPLY, 0, 12), + ADIS_TEMP_CHAN(ADIS16201_TEMP_OUT, ADIS16201_SCAN_TEMP, 0, 12), ADIS_ACCEL_CHAN(X, ADIS16201_XACCL_OUT, ADIS16201_SCAN_ACC_X, - BIT(IIO_CHAN_INFO_CALIBBIAS), 14), + BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14), ADIS_ACCEL_CHAN(Y, ADIS16201_YACCL_OUT, ADIS16201_SCAN_ACC_Y, - BIT(IIO_CHAN_INFO_CALIBBIAS), 14), - ADIS_AUX_ADC_CHAN(ADIS16201_AUX_ADC, ADIS16201_SCAN_AUX_ADC, 12), + BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14), + ADIS_AUX_ADC_CHAN(ADIS16201_AUX_ADC, ADIS16201_SCAN_AUX_ADC, 0, 12), ADIS_INCLI_CHAN(X, ADIS16201_XINCL_OUT, ADIS16201_SCAN_INCLI_X, - BIT(IIO_CHAN_INFO_CALIBBIAS), 14), + BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14), ADIS_INCLI_CHAN(X, ADIS16201_YINCL_OUT, ADIS16201_SCAN_INCLI_Y, - BIT(IIO_CHAN_INFO_CALIBBIAS), 14), + BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14), IIO_CHAN_SOFT_TIMESTAMP(7) }; diff --git a/drivers/staging/iio/accel/adis16203_core.c b/drivers/staging/iio/accel/adis16203_core.c index 409a28ed9043..f472137b0069 100644 --- a/drivers/staging/iio/accel/adis16203_core.c +++ b/drivers/staging/iio/accel/adis16203_core.c @@ -99,13 +99,14 @@ static int adis16203_read_raw(struct iio_dev *indio_dev, } static const struct iio_chan_spec adis16203_channels[] = { - ADIS_SUPPLY_CHAN(ADIS16203_SUPPLY_OUT, ADIS16203_SCAN_SUPPLY, 12), - ADIS_AUX_ADC_CHAN(ADIS16203_AUX_ADC, ADIS16203_SCAN_AUX_ADC, 12), + ADIS_SUPPLY_CHAN(ADIS16203_SUPPLY_OUT, ADIS16203_SCAN_SUPPLY, 0, 12), + ADIS_AUX_ADC_CHAN(ADIS16203_AUX_ADC, ADIS16203_SCAN_AUX_ADC, 0, 12), ADIS_INCLI_CHAN(X, ADIS16203_XINCL_OUT, ADIS16203_SCAN_INCLI_X, - BIT(IIO_CHAN_INFO_CALIBBIAS), 14), + BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14), /* Fixme: Not what it appears to be - see data sheet */ - ADIS_INCLI_CHAN(Y, ADIS16203_YINCL_OUT, ADIS16203_SCAN_INCLI_Y, 0, 14), - ADIS_TEMP_CHAN(ADIS16203_TEMP_OUT, ADIS16203_SCAN_TEMP, 12), + ADIS_INCLI_CHAN(Y, ADIS16203_YINCL_OUT, ADIS16203_SCAN_INCLI_Y, + 0, 0, 14), + ADIS_TEMP_CHAN(ADIS16203_TEMP_OUT, ADIS16203_SCAN_TEMP, 0, 12), IIO_CHAN_SOFT_TIMESTAMP(5), }; diff --git a/drivers/staging/iio/accel/adis16204_core.c b/drivers/staging/iio/accel/adis16204_core.c index b8ea76857cd6..19eaebc77d7a 100644 --- a/drivers/staging/iio/accel/adis16204_core.c +++ b/drivers/staging/iio/accel/adis16204_core.c @@ -136,15 +136,15 @@ static int adis16204_write_raw(struct iio_dev *indio_dev, } static const struct iio_chan_spec adis16204_channels[] = { - ADIS_SUPPLY_CHAN(ADIS16204_SUPPLY_OUT, ADIS16204_SCAN_SUPPLY, 12), - ADIS_AUX_ADC_CHAN(ADIS16204_AUX_ADC, ADIS16204_SCAN_AUX_ADC, 12), - ADIS_TEMP_CHAN(ADIS16204_TEMP_OUT, ADIS16204_SCAN_TEMP, 12), + ADIS_SUPPLY_CHAN(ADIS16204_SUPPLY_OUT, ADIS16204_SCAN_SUPPLY, 0, 12), + ADIS_AUX_ADC_CHAN(ADIS16204_AUX_ADC, ADIS16204_SCAN_AUX_ADC, 0, 12), + ADIS_TEMP_CHAN(ADIS16204_TEMP_OUT, ADIS16204_SCAN_TEMP, 0, 12), ADIS_ACCEL_CHAN(X, ADIS16204_XACCL_OUT, ADIS16204_SCAN_ACC_X, - BIT(IIO_CHAN_INFO_CALIBBIAS) | BIT(IIO_CHAN_INFO_PEAK), 14), + BIT(IIO_CHAN_INFO_CALIBBIAS) | BIT(IIO_CHAN_INFO_PEAK), 0, 14), ADIS_ACCEL_CHAN(Y, ADIS16204_YACCL_OUT, ADIS16204_SCAN_ACC_Y, - BIT(IIO_CHAN_INFO_CALIBBIAS) | BIT(IIO_CHAN_INFO_PEAK), 14), + BIT(IIO_CHAN_INFO_CALIBBIAS) | BIT(IIO_CHAN_INFO_PEAK), 0, 14), ADIS_ACCEL_CHAN(ROOT_SUM_SQUARED_X_Y, ADIS16204_XY_RSS_OUT, - ADIS16204_SCAN_ACC_XY, BIT(IIO_CHAN_INFO_PEAK), 14), + ADIS16204_SCAN_ACC_XY, BIT(IIO_CHAN_INFO_PEAK), 0, 14), IIO_CHAN_SOFT_TIMESTAMP(5), }; diff --git a/drivers/staging/iio/accel/adis16209_core.c b/drivers/staging/iio/accel/adis16209_core.c index 4492e51d8886..374dc6edbcf5 100644 --- a/drivers/staging/iio/accel/adis16209_core.c +++ b/drivers/staging/iio/accel/adis16209_core.c @@ -130,16 +130,18 @@ static int adis16209_read_raw(struct iio_dev *indio_dev, } static const struct iio_chan_spec adis16209_channels[] = { - ADIS_SUPPLY_CHAN(ADIS16209_SUPPLY_OUT, ADIS16209_SCAN_SUPPLY, 14), - ADIS_TEMP_CHAN(ADIS16209_TEMP_OUT, ADIS16209_SCAN_TEMP, 12), + ADIS_SUPPLY_CHAN(ADIS16209_SUPPLY_OUT, ADIS16209_SCAN_SUPPLY, 0, 14), + ADIS_TEMP_CHAN(ADIS16209_TEMP_OUT, ADIS16209_SCAN_TEMP, 0, 12), ADIS_ACCEL_CHAN(X, ADIS16209_XACCL_OUT, ADIS16209_SCAN_ACC_X, - BIT(IIO_CHAN_INFO_CALIBBIAS), 14), + BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14), ADIS_ACCEL_CHAN(Y, ADIS16209_YACCL_OUT, ADIS16209_SCAN_ACC_Y, - BIT(IIO_CHAN_INFO_CALIBBIAS), 14), - ADIS_AUX_ADC_CHAN(ADIS16209_AUX_ADC, ADIS16209_SCAN_AUX_ADC, 12), - ADIS_INCLI_CHAN(X, ADIS16209_XINCL_OUT, ADIS16209_SCAN_INCLI_X, 0, 14), - ADIS_INCLI_CHAN(Y, ADIS16209_YINCL_OUT, ADIS16209_SCAN_INCLI_Y, 0, 14), - ADIS_ROT_CHAN(X, ADIS16209_ROT_OUT, ADIS16209_SCAN_ROT, 0, 14), + BIT(IIO_CHAN_INFO_CALIBBIAS), 0, 14), + ADIS_AUX_ADC_CHAN(ADIS16209_AUX_ADC, ADIS16209_SCAN_AUX_ADC, 0, 12), + ADIS_INCLI_CHAN(X, ADIS16209_XINCL_OUT, ADIS16209_SCAN_INCLI_X, + 0, 0, 14), + ADIS_INCLI_CHAN(Y, ADIS16209_YINCL_OUT, ADIS16209_SCAN_INCLI_Y, + 0, 0, 14), + ADIS_ROT_CHAN(X, ADIS16209_ROT_OUT, ADIS16209_SCAN_ROT, 0, 0, 14), IIO_CHAN_SOFT_TIMESTAMP(8) }; diff --git a/drivers/staging/iio/accel/adis16240_core.c b/drivers/staging/iio/accel/adis16240_core.c index 3a303a03d028..74ace2a8769d 100644 --- a/drivers/staging/iio/accel/adis16240_core.c +++ b/drivers/staging/iio/accel/adis16240_core.c @@ -173,15 +173,15 @@ static int adis16240_write_raw(struct iio_dev *indio_dev, } static const struct iio_chan_spec adis16240_channels[] = { - ADIS_SUPPLY_CHAN(ADIS16240_SUPPLY_OUT, ADIS16240_SCAN_SUPPLY, 10), - ADIS_AUX_ADC_CHAN(ADIS16240_AUX_ADC, ADIS16240_SCAN_AUX_ADC, 10), + ADIS_SUPPLY_CHAN(ADIS16240_SUPPLY_OUT, ADIS16240_SCAN_SUPPLY, 0, 10), + ADIS_AUX_ADC_CHAN(ADIS16240_AUX_ADC, ADIS16240_SCAN_AUX_ADC, 0, 10), ADIS_ACCEL_CHAN(X, ADIS16240_XACCL_OUT, ADIS16240_SCAN_ACC_X, - BIT(IIO_CHAN_INFO_CALIBBIAS) | BIT(IIO_CHAN_INFO_PEAK), 10), + BIT(IIO_CHAN_INFO_CALIBBIAS) | BIT(IIO_CHAN_INFO_PEAK), 0, 10), ADIS_ACCEL_CHAN(Y, ADIS16240_YACCL_OUT, ADIS16240_SCAN_ACC_Y, - BIT(IIO_CHAN_INFO_CALIBBIAS) | BIT(IIO_CHAN_INFO_PEAK), 10), + BIT(IIO_CHAN_INFO_CALIBBIAS) | BIT(IIO_CHAN_INFO_PEAK), 0, 10), ADIS_ACCEL_CHAN(Z, ADIS16240_ZACCL_OUT, ADIS16240_SCAN_ACC_Z, - BIT(IIO_CHAN_INFO_CALIBBIAS) | BIT(IIO_CHAN_INFO_PEAK), 10), - ADIS_TEMP_CHAN(ADIS16240_TEMP_OUT, ADIS16240_SCAN_TEMP, 10), + BIT(IIO_CHAN_INFO_CALIBBIAS) | BIT(IIO_CHAN_INFO_PEAK), 0, 10), + ADIS_TEMP_CHAN(ADIS16240_TEMP_OUT, ADIS16240_SCAN_TEMP, 0, 10), IIO_CHAN_SOFT_TIMESTAMP(6) }; diff --git a/include/linux/iio/imu/adis.h b/include/linux/iio/imu/adis.h index b665dc7f017b..fa2d01ef8f55 100644 --- a/include/linux/iio/imu/adis.h +++ b/include/linux/iio/imu/adis.h @@ -157,13 +157,14 @@ int adis_single_conversion(struct iio_dev *indio_dev, const struct iio_chan_spec *chan, unsigned int error_mask, int *val); -#define ADIS_VOLTAGE_CHAN(addr, si, chan, name, bits) { \ +#define ADIS_VOLTAGE_CHAN(addr, si, chan, name, info_all, bits) { \ .type = IIO_VOLTAGE, \ .indexed = 1, \ .channel = (chan), \ .extend_name = name, \ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \ BIT(IIO_CHAN_INFO_SCALE), \ + .info_mask_shared_by_all = info_all, \ .address = (addr), \ .scan_index = (si), \ .scan_type = { \ @@ -174,19 +175,20 @@ int adis_single_conversion(struct iio_dev *indio_dev, }, \ } -#define ADIS_SUPPLY_CHAN(addr, si, bits) \ - ADIS_VOLTAGE_CHAN(addr, si, 0, "supply", bits) +#define ADIS_SUPPLY_CHAN(addr, si, info_all, bits) \ + ADIS_VOLTAGE_CHAN(addr, si, 0, "supply", info_all, bits) -#define ADIS_AUX_ADC_CHAN(addr, si, bits) \ - ADIS_VOLTAGE_CHAN(addr, si, 1, NULL, bits) +#define ADIS_AUX_ADC_CHAN(addr, si, info_all, bits) \ + ADIS_VOLTAGE_CHAN(addr, si, 1, NULL, info_all, bits) -#define ADIS_TEMP_CHAN(addr, si, bits) { \ +#define ADIS_TEMP_CHAN(addr, si, info_all, bits) { \ .type = IIO_TEMP, \ .indexed = 1, \ .channel = 0, \ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \ BIT(IIO_CHAN_INFO_SCALE) | \ BIT(IIO_CHAN_INFO_OFFSET), \ + .info_mask_shared_by_all = info_all, \ .address = (addr), \ .scan_index = (si), \ .scan_type = { \ @@ -197,13 +199,14 @@ int adis_single_conversion(struct iio_dev *indio_dev, }, \ } -#define ADIS_MOD_CHAN(_type, mod, addr, si, info_sep, bits) { \ +#define ADIS_MOD_CHAN(_type, mod, addr, si, info_sep, info_all, bits) { \ .type = (_type), \ .modified = 1, \ .channel2 = IIO_MOD_ ## mod, \ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \ info_sep, \ .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \ + .info_mask_shared_by_all = info_all, \ .address = (addr), \ .scan_index = (si), \ .scan_type = { \ @@ -214,17 +217,17 @@ int adis_single_conversion(struct iio_dev *indio_dev, }, \ } -#define ADIS_ACCEL_CHAN(mod, addr, si, info_sep, bits) \ - ADIS_MOD_CHAN(IIO_ACCEL, mod, addr, si, info_sep, bits) +#define ADIS_ACCEL_CHAN(mod, addr, si, info_sep, info_all, bits) \ + ADIS_MOD_CHAN(IIO_ACCEL, mod, addr, si, info_sep, info_all, bits) -#define ADIS_GYRO_CHAN(mod, addr, si, info_sep, bits) \ - ADIS_MOD_CHAN(IIO_ANGL_VEL, mod, addr, si, info_sep, bits) +#define ADIS_GYRO_CHAN(mod, addr, si, info_sep, info_all, bits) \ + ADIS_MOD_CHAN(IIO_ANGL_VEL, mod, addr, si, info_sep, info_all, bits) -#define ADIS_INCLI_CHAN(mod, addr, si, info_sep, bits) \ - ADIS_MOD_CHAN(IIO_INCLI, mod, addr, si, info_sep, bits) +#define ADIS_INCLI_CHAN(mod, addr, si, info_sep, info_all, bits) \ + ADIS_MOD_CHAN(IIO_INCLI, mod, addr, si, info_sep, info_all, bits) -#define ADIS_ROT_CHAN(mod, addr, si, info_sep, bits) \ - ADIS_MOD_CHAN(IIO_ROT, mod, addr, si, info_sep, bits) +#define ADIS_ROT_CHAN(mod, addr, si, info_sep, info_all, bits) \ + ADIS_MOD_CHAN(IIO_ROT, mod, addr, si, info_sep, info_all, bits) #ifdef CONFIG_IIO_ADIS_LIB_BUFFER