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Diffstat (limited to 'Documentation/iio/ep93xx_adc.txt')
| -rw-r--r-- | Documentation/iio/ep93xx_adc.txt | 29 |
1 files changed, 0 insertions, 29 deletions
diff --git a/Documentation/iio/ep93xx_adc.txt b/Documentation/iio/ep93xx_adc.txt deleted file mode 100644 index 23053e7817bd..000000000000 --- a/Documentation/iio/ep93xx_adc.txt +++ /dev/null @@ -1,29 +0,0 @@ -Cirrus Logic EP93xx ADC driver. - -1. Overview - -The driver is intended to work on both low-end (EP9301, EP9302) devices with -5-channel ADC and high-end (EP9307, EP9312, EP9315) devices with 10-channel -touchscreen/ADC module. - -2. Channel numbering - -Numbering scheme for channels 0..4 is defined in EP9301 and EP9302 datasheets. -EP9307, EP9312 and EP9312 have 3 channels more (total 8), but the numbering is -not defined. So the last three are numbered randomly, let's say. - -Assuming ep93xx_adc is IIO device0, you'd find the following entries under -/sys/bus/iio/devices/iio:device0/: - - +-----------------+---------------+ - | sysfs entry | ball/pin name | - +-----------------+---------------+ - | in_voltage0_raw | YM | - | in_voltage1_raw | SXP | - | in_voltage2_raw | SXM | - | in_voltage3_raw | SYP | - | in_voltage4_raw | SYM | - | in_voltage5_raw | XP | - | in_voltage6_raw | XM | - | in_voltage7_raw | YP | - +-----------------+---------------+ |