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Message-ID: <538C9E51.2000806@linux.intel.com> Date: Mon, 02 Jun 2014 08:54:57 -0700 From: Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com> To: Jonathan Cameron <jic23@...nel.org> CC: Reyad Attiyat <reyad.attiyat@...il.com>, linux-kernel@...r.kernel.org, linux-iio@...r.kernel.org, linux-input@...r.kernel.org, jkosina@...e.cz Subject: Re: [PATCH 1/3] IIO: Add iio magn_north ABI documentation On 05/29/2014 09:46 AM, Jonathan Cameron wrote: > On 28/05/14 22:06, Reyad Attiyat wrote: >> Update documentation for HID compass true/magnetic north sensor. >> >> Signed-off-by: Reyad Attiyat <reyad.attiyat@...il.com> >> --- >> Documentation/ABI/testing/sysfs-bus-iio | 76 >> +++++++++++++++++++++++++++++++++ >> 1 file changed, 76 insertions(+) >> >> diff --git a/Documentation/ABI/testing/sysfs-bus-iio >> b/Documentation/ABI/testing/sysfs-bus-iio >> index 6e02c50..0341b2f 100644 >> --- a/Documentation/ABI/testing/sysfs-bus-iio >> +++ b/Documentation/ABI/testing/sysfs-bus-iio >> @@ -165,6 +165,10 @@ Description: >> What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_raw >> What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_raw >> What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_raw > Hmm. The question to my mind is whether people would expect a simple > north to give > them which direction north is? > Also is it actually relevant whether they find north from a > magnetometer or some other method? > I wonder if we want to make these some sort of north referenced rotation? > in_rot_from_true_north_raw > in_rot_from_magnetic_north_raw > > Technically it is possible to get some direction information from some > GPS receivers or to > to maintain a knowledge of its location with good gyroscopes. > > Ultimately userspace doesn't care about it. When we were using the > axial magnetic functions we > were measuring the field magnitude in that direction. As I understand > it here it is just an angle? Yes, they are angles. Default units are degrees, which we should convert to radians as a standard unit for IIO. Thanks, Srinivas > > J >> +What: /sys/bus/iio/devices/iio:deviceX/in_magn_north_raw >> +What: /sys/bus/iio/devices/iio:deviceX/in_magn_north_true_raw >> +What: /sys/bus/iio/devices/iio:deviceX/in_magn_north_tilt_comp_raw >> +What: /sys/bus/iio/devices/iio:deviceX/in_magn_north_true_tilt_comp_raw >> KernelVersion: 2.6.35 >> Contact: linux-iio@...r.kernel.org >> Description: >> @@ -249,6 +253,10 @@ What: >> /sys/bus/iio/devices/iio:deviceX/in_magn_scale >> What: /sys/bus/iio/devices/iio:deviceX/in_magn_x_scale >> What: /sys/bus/iio/devices/iio:deviceX/in_magn_y_scale >> What: /sys/bus/iio/devices/iio:deviceX/in_magn_z_scale >> +What: /sys/bus/iio/devices/iio:deviceX/in_magn_north_scale >> +What: /sys/bus/iio/devices/iio:deviceX/in_magn_north_true_scale >> +What: /sys/bus/iio/devices/iio:deviceX/in_magn_north_tilt_comp_scale >> +What: >> /sys/bus/iio/devices/iio:deviceX/in_magn_north_true_tilt_comp_scale >> What: /sys/bus/iio/devices/iio:deviceX/in_pressureY_scale >> What: /sys/bus/iio/devices/iio:deviceX/in_pressure_scale >> KernelVersion: 2.6.35 >> @@ -436,6 +444,14 @@ What: >> /sys/.../iio:deviceX/events/in_magn_y_thresh_rising_en >> What: /sys/.../iio:deviceX/events/in_magn_y_thresh_falling_en >> What: /sys/.../iio:deviceX/events/in_magn_z_thresh_rising_en >> What: /sys/.../iio:deviceX/events/in_magn_z_thresh_falling_en >> +What: /sys/.../iio:deviceX/events/in_magn_north_thresh_rising_en >> +What: /sys/.../iio:deviceX/events/in_magn_north_thresh_falling_en >> +What: /sys/.../iio:deviceX/events/in_magn_north_true_thresh_rising_en >> +What: /sys/.../iio:deviceX/events/in_magn_north_true_thresh_falling_en >> +What: >> /sys/.../iio:deviceX/events/in_magn_north_tilt_comp_thresh_rising_en >> +What: >> /sys/.../iio:deviceX/events/in_magn_north_tilt_comp_thresh_falling_en >> +What: >> /sys/.../iio:deviceX/events/in_magn_north_true_tilt_comp_thresh_rising_en >> +What: >> /sys/.../iio:deviceX/events/in_magn_north_true_tilt_comp_thresh_falling_en >> What: /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_rising_en >> What: /sys/.../iio:deviceX/events/in_voltageY_supply_thresh_falling_en >> What: /sys/.../iio:deviceX/events/in_voltageY_thresh_rising_en >> @@ -481,6 +497,14 @@ What: >> /sys/.../iio:deviceX/events/in_magn_y_roc_rising_en >> What: /sys/.../iio:deviceX/events/in_magn_y_roc_falling_en >> What: /sys/.../iio:deviceX/events/in_magn_z_roc_rising_en >> What: /sys/.../iio:deviceX/events/in_magn_z_roc_falling_en >> +What: /sys/.../iio:deviceX/events/in_magn_north_roc_rising_en >> +What: /sys/.../iio:deviceX/events/in_magn_north_roc_falling_en >> +What: /sys/.../iio:deviceX/events/in_magn_north_true_roc_rising_en >> +What: /sys/.../iio:deviceX/events/in_magn_north_true_roc_falling_en >> +What: /sys/.../iio:deviceX/events/in_magn_north_tilt_comp_roc_rising_en >> +What: >> /sys/.../iio:deviceX/events/in_magn_north_tilt_comp_roc_falling_en >> +What: >> /sys/.../iio:deviceX/events/in_magn_north_true_tilt_comp_roc_rising_en >> +What: >> /sys/.../iio:deviceX/events/in_magn_north_true_tilt_comp_roc_falling_en >> What: /sys/.../iio:deviceX/events/in_voltageY_supply_roc_rising_en >> What: /sys/.../iio:deviceX/events/in_voltageY_supply_roc_falling_en >> What: /sys/.../iio:deviceX/events/in_voltageY_roc_rising_en >> @@ -527,6 +551,14 @@ What: >> /sys/.../events/in_magn_y_raw_thresh_rising_value >> What: /sys/.../events/in_magn_y_raw_thresh_falling_value >> What: /sys/.../events/in_magn_z_raw_thresh_rising_value >> What: /sys/.../events/in_magn_z_raw_thresh_falling_value >> +What: /sys/.../events/in_magn_north_raw_thresh_rising_value >> +What: /sys/.../events/in_magn_north_raw_thresh_falling_value >> +What: /sys/.../events/in_magn_north_true_raw_thresh_rising_value >> +What: /sys/.../events/in_magn_north_true_raw_thresh_falling_value >> +What: /sys/.../events/in_magn_north_tilt_comp_raw_thresh_rising_value >> +What: /sys/.../events/in_magn_north_tilt_comp_raw_thresh_falling_value >> +What: >> /sys/.../events/in_magn_north_true_tilt_comp_raw_thresh_rising_value >> +What: >> /sys/.../events/in_magn_north_true_tilt_comp_raw_thresh_falling_value >> What: /sys/.../events/in_voltageY_supply_raw_thresh_rising_value >> What: /sys/.../events/in_voltageY_supply_raw_thresh_falling_value >> What: /sys/.../events/in_voltageY_raw_thresh_rising_value >> @@ -577,6 +609,18 @@ What: >> /sys/.../events/in_magn_y_thresh_either_hysteresis >> What: /sys/.../events/in_magn_z_thresh_rising_hysteresis >> What: /sys/.../events/in_magn_z_thresh_falling_hysteresis >> What: /sys/.../events/in_magn_z_thresh_either_hysteresis >> +What: /sys/.../events/in_magn_north_thresh_rising_hysteresis >> +What: /sys/.../events/in_magn_north_thresh_falling_hysteresis >> +What: /sys/.../events/in_magn_north_thresh_either_hysteresis >> +What: /sys/.../events/in_magn_north_true_thresh_rising_hysteresis >> +What: /sys/.../events/in_magn_north_true_thresh_falling_hysteresis >> +What: /sys/.../events/in_magn_north_true_thresh_either_hysteresis >> +What: /sys/.../events/in_magn_north_tilt_comp_thresh_rising_hysteresis >> +What: /sys/.../events/in_magn_north_tilt_comp_thresh_falling_hysteresis >> +What: /sys/.../events/in_magn_north_tilt_comp_thresh_either_hysteresis >> +What: >> /sys/.../events/in_magn_north_true_tilt_comp_thresh_rising_hysteresis >> +What: >> /sys/.../events/in_magn_north_true_tilt_comp_thresh_falling_hysteresis >> +What: >> /sys/.../events/in_magn_north_true_tilt_comp_thresh_either_hysteresis >> What: /sys/.../events/in_voltageY_thresh_rising_hysteresis >> What: /sys/.../events/in_voltageY_thresh_falling_hysteresis >> What: /sys/.../events/in_voltageY_thresh_either_hysteresis >> @@ -624,6 +668,14 @@ What: >> /sys/.../events/in_magn_y_raw_roc_rising_value >> What: /sys/.../events/in_magn_y_raw_roc_falling_value >> What: /sys/.../events/in_magn_z_raw_roc_rising_value >> What: /sys/.../events/in_magn_z_raw_roc_falling_value >> +What: /sys/.../events/in_magn_north_raw_roc_rising_value >> +What: /sys/.../events/in_magn_north_raw_roc_falling_value >> +What: /sys/.../events/in_magn_north_true_raw_roc_rising_value >> +What: /sys/.../events/in_magn_north_true_raw_roc_falling_value >> +What: /sys/.../events/in_magn_north_tilt_comp_raw_roc_rising_value >> +What: /sys/.../events/in_magn_north_tilt_comp_raw_roc_falling_value >> +What: /sys/.../events/in_magn_north_true_tilt_comp_raw_roc_rising_value >> +What: >> /sys/.../events/in_magn_north_true_tilt_comp_raw_roc_falling_value >> What: /sys/.../events/in_voltageY_supply_raw_roc_rising_value >> What: /sys/.../events/in_voltageY_supply_raw_roc_falling_value >> What: /sys/.../events/in_voltageY_raw_roc_rising_value >> @@ -679,6 +731,22 @@ What: >> /sys/.../events/in_magn_z_thresh_rising_period >> What: /sys/.../events/in_magn_z_thresh_falling_period >> What: /sys/.../events/in_magn_z_roc_rising_period >> What: /sys/.../events/in_magn_z_roc_falling_period >> +What: /sys/.../events/in_magn_north_thresh_rising_period >> +What: /sys/.../events/in_magn_north_thresh_falling_period >> +What: /sys/.../events/in_magn_north_roc_rising_period >> +What: /sys/.../events/in_magn_north_roc_falling_period >> +What: /sys/.../events/in_magn_north_true_thresh_rising_period >> +What: /sys/.../events/in_magn_north_true_thresh_falling_period >> +What: /sys/.../events/in_magn_north_true_roc_rising_period >> +What: /sys/.../events/in_magn_north_true_roc_falling_period >> +What: /sys/.../events/in_magn_north_tilt_comp_thresh_rising_period >> +What: /sys/.../events/in_magn_north_tilt_comp_thresh_falling_period >> +What: /sys/.../events/in_magn_north_tilt_comp_roc_rising_period >> +What: /sys/.../events/in_magn_north_tilt_comp_roc_falling_period >> +What: /sys/.../events/in_magn_north_true_tilt_comp_thresh_rising_period >> +What: >> /sys/.../events/in_magn_north_true_tilt_comp_thresh_falling_period >> +What: /sys/.../events/in_magn_north_true_tilt_comp_roc_rising_period >> +What: /sys/.../events/in_magn_north_true_tilt_comp_roc_falling_period >> What: /sys/.../events/in_voltageY_supply_thresh_rising_period >> What: /sys/.../events/in_voltageY_supply_thresh_falling_period >> What: /sys/.../events/in_voltageY_supply_roc_rising_period >> @@ -776,6 +844,10 @@ What: >> /sys/.../iio:deviceX/scan_elements/in_anglvel_z_en >> What: /sys/.../iio:deviceX/scan_elements/in_magn_x_en >> What: /sys/.../iio:deviceX/scan_elements/in_magn_y_en >> What: /sys/.../iio:deviceX/scan_elements/in_magn_z_en >> +What: /sys/.../iio:deviceX/scan_elements/in_magn_north_en >> +What: /sys/.../iio:deviceX/scan_elements/in_magn_north_true_en >> +What: /sys/.../iio:deviceX/scan_elements/in_magn_north_tilt_comp_en >> +What: >> /sys/.../iio:deviceX/scan_elements/in_magn_north_true_tilt_comp_en >> What: /sys/.../iio:deviceX/scan_elements/in_timestamp_en >> What: /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_en >> What: /sys/.../iio:deviceX/scan_elements/in_voltageY_en >> @@ -840,6 +912,10 @@ What: >> /sys/.../iio:deviceX/scan_elements/in_anglvel_z_index >> What: /sys/.../iio:deviceX/scan_elements/in_magn_x_index >> What: /sys/.../iio:deviceX/scan_elements/in_magn_y_index >> What: /sys/.../iio:deviceX/scan_elements/in_magn_z_index >> +What: /sys/.../iio:deviceX/scan_elements/in_magn_north_index >> +What: /sys/.../iio:deviceX/scan_elements/in_magn_north_true_index >> +What: /sys/.../iio:deviceX/scan_elements/in_magn_north_tilt_comp_index >> +What: >> /sys/.../iio:deviceX/scan_elements/in_magn_north_true_tilt_comp_index >> What: /sys/.../iio:deviceX/scan_elements/in_incli_x_index >> What: /sys/.../iio:deviceX/scan_elements/in_incli_y_index >> What: /sys/.../iio:deviceX/scan_elements/in_timestamp_index >> > > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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