|  | Kernel driver ads7828 | 
|  | ===================== | 
|  |  | 
|  | Supported chips: | 
|  | * Texas Instruments/Burr-Brown ADS7828 | 
|  | Prefix: 'ads7828' | 
|  | Addresses scanned: I2C 0x48, 0x49, 0x4a, 0x4b | 
|  | Datasheet: Publicly available at the Texas Instruments website : | 
|  | http://focus.ti.com/lit/ds/symlink/ads7828.pdf | 
|  |  | 
|  | Authors: | 
|  | Steve Hardy <shardy@redhat.com> | 
|  |  | 
|  | Module Parameters | 
|  | ----------------- | 
|  |  | 
|  | * se_input: bool (default Y) | 
|  | Single ended operation - set to N for differential mode | 
|  | * int_vref: bool (default Y) | 
|  | Operate with the internal 2.5V reference - set to N for external reference | 
|  | * vref_mv: int (default 2500) | 
|  | If using an external reference, set this to the reference voltage in mV | 
|  |  | 
|  | Description | 
|  | ----------- | 
|  |  | 
|  | This driver implements support for the Texas Instruments ADS7828. | 
|  |  | 
|  | This device is a 12-bit 8-channel A-D converter. | 
|  |  | 
|  | 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. |