1What: /sys/kernel/debug/olpc-ec/cmd 2Date: Dec 2011 3KernelVersion: 3.4 4Contact: devel@lists.laptop.org 5Description: 6 7A generic interface for executing OLPC Embedded Controller commands and 8reading their responses. 9 10To execute a command, write data with the format: CC:N A A A A 11CC is the (hex) command, N is the count of expected reply bytes, and A A A A 12are optional (hex) arguments. 13 14To read the response (if any), read from the generic node after executing 15a command. Hex reply bytes will be returned, *whether or not* they came from 16the immediately previous command. 17