| 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). |