hc
2023-12-08 01573e231f18eb2d99162747186f59511f56b64d
kernel/Documentation/ABI/testing/sysfs-bus-iio-dfsdm-adc-stm32
....@@ -3,14 +3,20 @@
33 Contact: arnaud.pouliquen@st.com
44 Description:
55 For audio purpose only.
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+
67 Used by audio driver to set/get the spi input frequency.
8
+
79 This is mandatory if DFSDM is slave on SPI bus, to
810 provide information on the SPI clock frequency during runtime
911 Notice that the SPI frequency should be a multiple of sample
1012 frequency to ensure the precision.
11
- if DFSDM input is SPI master
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+
14
+ if DFSDM input is SPI master:
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+
1216 Reading SPI clkout frequency,
1317 error on writing
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+
1419 If DFSDM input is SPI Slave:
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1521 Reading returns value previously set.
16
- Writing value before starting conversions.
22
+ Writing value before starting conversions.