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diff --git a/Documentation/hwmon/mcp3021.rst b/Documentation/hwmon/mcp3021.rst new file mode 100644 index 000000000000..83f4bda2f269 --- /dev/null +++ b/Documentation/hwmon/mcp3021.rst @@ -0,0 +1,38 @@ +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). |