kernel-ark/Documentation/hwmon/mcp3021
Sven Schuchmann 592758b12f hwmon: (mcp3021) Add MCP3221 support
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>
2012-09-23 21:08:36 -07:00

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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).