1What: /sys/kernel/debug/wilco_ec/raw 2Date: January 2019 3KernelVersion: 5.1 4Description: 5 Write and read raw mailbox commands to the EC. 6 7 For writing: 8 Bytes 0-1 indicate the message type: 9 00 F0 = Execute Legacy Command 10 00 F2 = Read/Write NVRAM Property 11 Byte 2 provides the command code 12 Bytes 3+ consist of the data passed in the request 13 14 At least three bytes are required, for the msg type and command, 15 with additional bytes optional for additional data. 16 17 Example: 18 // Request EC info type 3 (EC firmware build date) 19 $ echo 00 f0 38 00 03 00 > raw 20 // View the result. The decoded ASCII result "12/21/18" is 21 // included after the raw hex. 22 $ cat raw 23 00 31 32 2f 32 31 2f 31 38 00 38 00 01 00 2f 00 .12/21/18.8... 24