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authorSven Schuchmann <schuchmann@schleissheimer.de>2012-09-21 13:04:22 +0200
committerGuenter Roeck <linux@roeck-us.net>2012-09-24 06:08:36 +0200
commit592758b12f2e327bb5902dabd3d36b2e86049871 (patch)
treea6dfcb123de6fb8b09b394a28d0f5d66e2387e6c /Documentation/hwmon/mcp3021
parenthwmon: (mcp3021) Prepare MCP3021 driver to support other chips (diff)
downloadlinux-592758b12f2e327bb5902dabd3d36b2e86049871.tar.xz
linux-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/mcp302123
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).