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Diffstat (limited to 'Documentation/hwmon/ads7828')
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diff --git a/Documentation/hwmon/ads7828 b/Documentation/hwmon/ads7828 deleted file mode 100644 index f6e263e0f607..000000000000 --- a/Documentation/hwmon/ads7828 +++ /dev/null @@ -1,58 +0,0 @@ -Kernel driver ads7828 -===================== - -Supported chips: - * Texas Instruments/Burr-Brown ADS7828 - Prefix: 'ads7828' - Datasheet: Publicly available at the Texas Instruments website: - http://focus.ti.com/lit/ds/symlink/ads7828.pdf - - * Texas Instruments ADS7830 - Prefix: 'ads7830' - Datasheet: Publicly available at the Texas Instruments website: - http://focus.ti.com/lit/ds/symlink/ads7830.pdf - -Authors: - Steve Hardy <shardy@redhat.com> - Vivien Didelot <vivien.didelot@savoirfairelinux.com> - Guillaume Roguez <guillaume.roguez@savoirfairelinux.com> - -Platform data -------------- - -The ads7828 driver accepts an optional ads7828_platform_data structure (defined -in include/linux/platform_data/ads7828.h). The structure fields are: - -* diff_input: (bool) Differential operation - set to true for differential mode, false for default single ended mode. - -* ext_vref: (bool) External reference - set to true if it operates with an external reference, false for default - internal reference. - -* vref_mv: (unsigned int) Voltage reference - if using an external reference, set this to the reference voltage in mV, - otherwise it will default to the internal value (2500mV). This value will be - bounded with limits accepted by the chip, described in the datasheet. - - If no structure is provided, the configuration defaults to single ended - operation and internal voltage reference (2.5V). - -Description ------------ - -This driver implements support for the Texas Instruments ADS7828 and ADS7830. - -The ADS7828 device is a 12-bit 8-channel A/D converter, while the ADS7830 does -8-bit sampling. - -It can operate in single ended mode (8 +ve inputs) or in differential mode, -where 4 differential pairs can be measured. - -The chip also has the facility to use an external voltage reference. This -may be required if your hardware supplies the ADS7828 from a 5V supply, see -the datasheet for more details. - -There is no reliable way to identify this chip, so the driver will not scan -some addresses to try to auto-detect it. That means that you will have to -statically declare the device in the platform support code. |