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| author | Sven Schuchmann <schuchmann@schleissheimer.de> | 2012-09-21 13:04:22 +0200 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2012-09-23 21:08:36 -0700 |
| commit | 592758b12f2e327bb5902dabd3d36b2e86049871 (patch) | |
| tree | a6dfcb123de6fb8b09b394a28d0f5d66e2387e6c /Documentation/hwmon/mcp3021 | |
| parent | 8b662f38e066d8fc1b73a8655da547c348206904 (diff) | |
| download | lwn-592758b12f2e327bb5902dabd3d36b2e86049871.tar.gz lwn-592758b12f2e327bb5902dabd3d36b2e86049871.zip | |
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>
Diffstat (limited to 'Documentation/hwmon/mcp3021')
| -rw-r--r-- | Documentation/hwmon/mcp3021 | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/Documentation/hwmon/mcp3021 b/Documentation/hwmon/mcp3021 index 325fd87e81b2..74a6b72adf5f 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 <schuchmann@schleissheimer.de> 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). |