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592758b12f
This Patch adds support for mcp3221 chip to the mcp3021 driver. Signed-off-by: Sven Schuchmann <schuchmann@schleissheimer.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
992 B
992 B
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).