projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blame
| Commit | Line | Data |
|---|---|---|
| 5812f928 SH |
1 | Kernel driver ads7828 |
| 2 | ===================== | |
| 3 | ||
| 4 | Supported chips: | |
| 5 | * Texas Instruments/Burr-Brown ADS7828 | |
| 6 | Prefix: 'ads7828' | |
| 7 | Addresses scanned: I2C 0x48, 0x49, 0x4a, 0x4b | |
| 8 | Datasheet: Publicly available at the Texas Instruments website : | |
| 9 | http://focus.ti.com/lit/ds/symlink/ads7828.pdf | |
| 10 | ||
| 11 | Authors: | |
| 5d84291d | 12 | Steve Hardy <shardy@redhat.com> |
| 5812f928 SH |
13 | |
| 14 | Module Parameters | |
| 15 | ----------------- | |
| 16 | ||
| 17 | * se_input: bool (default Y) | |
| 18 | Single ended operation - set to N for differential mode | |
| 19 | * int_vref: bool (default Y) | |
| 20 | Operate with the internal 2.5V reference - set to N for external reference | |
| 21 | * vref_mv: int (default 2500) | |
| 22 | If using an external reference, set this to the reference voltage in mV | |
| 23 | ||
| 24 | Description | |
| 25 | ----------- | |
| 26 | ||
| 27 | This driver implements support for the Texas Instruments ADS7828. | |
| 28 | ||
| 29 | This device is a 12-bit 8-channel A-D converter. | |
| 30 | ||
| 31 | It can operate in single ended mode (8 +ve inputs) or in differential mode, | |
| 32 | where 4 differential pairs can be measured. | |
| 33 | ||
| 34 | The chip also has the facility to use an external voltage reference. This | |
| 35 | may be required if your hardware supplies the ADS7828 from a 5V supply, see | |
| 36 | the datasheet for more details. |