Add documentation for the ad4080 attributes. Signed-off-by: Antoniu Miclaus <antoniu.miclaus@xxxxxxxxxx> --- .../ABI/testing/sysfs-bus-iio-adc-ad4080 | 55 +++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-bus-iio-adc-ad4080 diff --git a/Documentation/ABI/testing/sysfs-bus-iio-adc-ad4080 b/Documentation/ABI/testing/sysfs-bus-iio-adc-ad4080 new file mode 100644 index 000000000000..e37bfba0e989 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-iio-adc-ad4080 @@ -0,0 +1,55 @@ +What: /sys/bus/iio/devices/iio:deviceX/lvds_sync +Date: February 2025 +KernelVersion: +Contact: linux-iio@xxxxxxxxxxxxxxx +Description: + This attribute handles the data synchronization process.Because the CNV + signal is not taken into account by the FPGA when capturing the data, we + need a process that configures the ADC to output pattern data, writes the + SYNC bit in the axi_adc register map, waits until the custom HDL syncs the + data correctly, and then changes the output mode to analog data instead of + the fixed pattern. + +What: /sys/bus/iio/devices/iio:deviceX/lvds_lvds +Date: February 2025 +KernelVersion: +Contact: linux-iio@xxxxxxxxxxxxxxx +Description: + Configures the signal type of the CNV signal. The value can be either CMOS + (lvds_cnv=0) or LVDS (lvds_cnv=1). + +What: /sys/bus/iio/devices/iio:deviceX/filter_sel +Date: February 2025 +KernelVersion: +Contact: linux-iio@xxxxxxxxxxxxxxx +Description: + This attribute enables the digital filter functionality of the AD4080.In + order to capture data correctly, the function must configure the ADC + through SPI to select the filter type and enable data capture in filter + mode through axi_adc(In this mode, data is gated by a signal generated by + the AD4080 (GPIO1 and is not continuous as it is when the filter is + disabled). + +What: /sys/bus/iio/devices/iio:deviceX/filter_sel_available +Date: February 2025 +KernelVersion: +Contact: linux-iio@xxxxxxxxxxxxxxx +Description: + Return the available filter modes that can be set. + +What: /sys/bus/iio/devices/iio:deviceX/sinc_dec_rate +Date: February 2025 +KernelVersion: +Contact: linux-iio@xxxxxxxxxxxxxxx +Description: + Set the filter’s decimation rate. + +What: /sys/bus/iio/devices/iio:deviceX/sinc_dec_rate_available +Date: February 2025 +KernelVersion: +Contact: linux-iio@xxxxxxxxxxxxxxx +Description: + Return the available filter's decimation rates. + + + -- 2.48.1
