162306a36Sopenharmony_ciWhat: /sys/bus/iio/devices/iio:deviceX/in_proximity<id>_setup 262306a36Sopenharmony_ciDate: November 2021 362306a36Sopenharmony_ciKernelVersion: 5.17 462306a36Sopenharmony_ciContact: Gwendal Grignou <gwendal@chromium.org> 562306a36Sopenharmony_ciDescription: 662306a36Sopenharmony_ci SX9324 has 3 inputs, CS0, CS1 and CS2. Hardware layout 762306a36Sopenharmony_ci defines if the input is 862306a36Sopenharmony_ci 962306a36Sopenharmony_ci + not connected (HZ), 1062306a36Sopenharmony_ci + grounded (GD), 1162306a36Sopenharmony_ci + connected to an antenna where it can act as a base 1262306a36Sopenharmony_ci (DS - data shield), or measured input (MI). 1362306a36Sopenharmony_ci 1462306a36Sopenharmony_ci The sensor rotates measurement across 4 phases 1562306a36Sopenharmony_ci (PH0, PH1, PH2, PH3), where the inputs are configured 1662306a36Sopenharmony_ci and then measured. 1762306a36Sopenharmony_ci 1862306a36Sopenharmony_ci By default, during the first phase, [PH0], CS0 is measured, 1962306a36Sopenharmony_ci while CS1 and CS2 are used as shields. 2062306a36Sopenharmony_ci `cat in_proximity0_setup` returns "MI,DS,DS". 2162306a36Sopenharmony_ci [PH1], CS1 is measured, CS0 and CS2 are shield: 2262306a36Sopenharmony_ci `cat in_proximity1_setup` returns "DS,MI,DS". 2362306a36Sopenharmony_ci [PH2], CS2 is measured, CS0 and CS1 are shield: 2462306a36Sopenharmony_ci `cat in_proximity1_setup` returns "DS,DS,MI". 2562306a36Sopenharmony_ci [PH3], CS1 and CS2 are measured (combo mode): 2662306a36Sopenharmony_ci `cat in_proximity1_setup` returns "DS,MI,MI". 2762306a36Sopenharmony_ci 2862306a36Sopenharmony_ci Note, these are the chip default. Hardware layout will most 2962306a36Sopenharmony_ci likely dictate different output. The entry is read-only. 30