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Diffstat (limited to 'kernel/Documentation/hwmon/mcp3021')
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diff --git a/kernel/Documentation/hwmon/mcp3021 b/kernel/Documentation/hwmon/mcp3021 new file mode 100644 index 000000000..74a6b72ad --- /dev/null +++ b/kernel/Documentation/hwmon/mcp3021 @@ -0,0 +1,29 @@ +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). |