| Kernel driver MCP3021 |
| ====================== |
| |
| Supported chips: |
| * Microchip Technology MCP3021 |
| Prefix: 'mcp3021' |
| Datasheet: http://ww1.microchip.com/downloads/en/DeviceDoc/21805a.pdf |
| * Microchip Technology MCP3221 |
| Prefix: 'mcp3221' |
| Datasheet: http://ww1.microchip.com/downloads/en/DeviceDoc/21732c.pdf |
| |
| Authors: |
| Mingkai Hu |
| Sven Schuchmann <schuchmann@schleissheimer.de> |
| |
| Description |
| ----------- |
| |
| This driver implements support for the Microchip Technology MCP3021 and |
| MCP3221 chip. |
| |
| The Microchip Technology Inc. MCP3021 is a successive approximation A/D |
| converter (ADC) with 10-bit resolution. The MCP3221 has 12-bit resolution. |
| |
| These devices provide one single-ended input with very low power consumption. |
| Communication to the MCP3021/MCP3221 is performed using a 2-wire I2C |
| compatible interface. Standard (100 kHz) and Fast (400 kHz) I2C modes are |
| available. The default I2C device address is 0x4d (contact the Microchip |
| factory for additional address options). |
