From 4d112ebd02d10faf202aa8335b06de0aca8b536b Mon Sep 17 00:00:00 2001 From: Guillaume Ranquet Date: Mon, 2 Dec 2024 11:09:53 +0100 Subject: [PATCH] iio: adc: ad-sigma-delta: Document ABI for sigma delta adc Add common calibration nodes for sigma delta adc. Signed-off-by: Guillaume Ranquet Link: https://patch.msgid.link/20241202-ad411x_calibration-v3-2-beb6aeec39e2@baylibre.com Signed-off-by: Jonathan Cameron --- .../testing/sysfs-bus-iio-adc-ad-sigma-delta | 23 ++++++++++++++++++ .../ABI/testing/sysfs-bus-iio-adc-ad7192 | 24 ------------------- 2 files changed, 23 insertions(+), 24 deletions(-) create mode 100644 Documentation/ABI/testing/sysfs-bus-iio-adc-ad-sigma-delta diff --git a/Documentation/ABI/testing/sysfs-bus-iio-adc-ad-sigma-delta b/Documentation/ABI/testing/sysfs-bus-iio-adc-ad-sigma-delta new file mode 100644 index 0000000000000..a5a8a579f4f34 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-iio-adc-ad-sigma-delta @@ -0,0 +1,23 @@ +What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_sys_calibration +KernelVersion: 5.5 +Contact: linux-iio@vger.kernel.org +Description: + This attribute, if available, initiates the system calibration procedure. This is done on a + single channel at a time. Write '1' to start the calibration. + +What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_sys_calibration_mode_available +KernelVersion: 5.5 +Contact: linux-iio@vger.kernel.org +Description: + This attribute, if available, returns a list with the possible calibration modes. + There are two available options: + "zero_scale" - calibrate to zero scale + "full_scale" - calibrate to full scale + +What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_sys_calibration_mode +KernelVersion: 5.5 +Contact: linux-iio@vger.kernel.org +Description: + This attribute, if available, sets up the calibration mode used in the system calibration + procedure. Reading returns the current calibration mode. + Writing sets the system calibration mode. diff --git a/Documentation/ABI/testing/sysfs-bus-iio-adc-ad7192 b/Documentation/ABI/testing/sysfs-bus-iio-adc-ad7192 index f8315202c8f0d..28be1cabf1124 100644 --- a/Documentation/ABI/testing/sysfs-bus-iio-adc-ad7192 +++ b/Documentation/ABI/testing/sysfs-bus-iio-adc-ad7192 @@ -19,33 +19,9 @@ Description: the bridge can be disconnected (when it is not being used using the bridge_switch_en attribute. -What: /sys/bus/iio/devices/iio:deviceX/in_voltagex_sys_calibration -KernelVersion: -Contact: linux-iio@vger.kernel.org -Description: - Initiates the system calibration procedure. This is done on a - single channel at a time. Write '1' to start the calibration. - What: /sys/bus/iio/devices/iio:deviceX/in_voltage2-voltage2_shorted_raw KernelVersion: Contact: linux-iio@vger.kernel.org Description: Measure voltage from AIN2 pin connected to AIN(+) and AIN(-) shorted. - -What: /sys/bus/iio/devices/iio:deviceX/in_voltagex_sys_calibration_mode_available -KernelVersion: -Contact: linux-iio@vger.kernel.org -Description: - Reading returns a list with the possible calibration modes. - There are two available options: - "zero_scale" - calibrate to zero scale - "full_scale" - calibrate to full scale - -What: /sys/bus/iio/devices/iio:deviceX/in_voltagex_sys_calibration_mode -KernelVersion: -Contact: linux-iio@vger.kernel.org -Description: - Sets up the calibration mode used in the system calibration - procedure. Reading returns the current calibration mode. - Writing sets the system calibration mode. -- 2.47.3