From 592758b12f2e327bb5902dabd3d36b2e86049871 Mon Sep 17 00:00:00 2001 From: Sven Schuchmann Date: Fri, 21 Sep 2012 13:04:22 +0200 Subject: hwmon: (mcp3021) Add MCP3221 support This Patch adds support for mcp3221 chip to the mcp3021 driver. Signed-off-by: Sven Schuchmann Signed-off-by: Guenter Roeck --- Documentation/hwmon/mcp3021 | 23 +++++++++++++++-------- 1 file changed, 15 insertions(+), 8 deletions(-) (limited to 'Documentation/hwmon/mcp3021') diff --git a/Documentation/hwmon/mcp3021 b/Documentation/hwmon/mcp3021 index 325fd87e81b..74a6b72adf5 100644 --- a/Documentation/hwmon/mcp3021 +++ b/Documentation/hwmon/mcp3021 @@ -5,18 +5,25 @@ 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 -Author: Mingkai Hu +Authors: + Mingkai Hu + Sven Schuchmann Description ----------- -This driver implements support for the Microchip Technology MCP3021 chip. +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. -This device provides one single-ended input with very low power consumption. -Communication to the MCP3021 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). +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). -- cgit v1.2.3-18-g5258