1*4882a593Smuzhiyun* QNAP Power Off 2*4882a593Smuzhiyun 3*4882a593SmuzhiyunQNAP NAS devices have a microcontroller controlling the main power 4*4882a593Smuzhiyunsupply. This microcontroller is connected to UART1 of the Kirkwood and 5*4882a593SmuzhiyunOrion5x SoCs. Sending the character 'A', at 19200 baud, tells the 6*4882a593Smuzhiyunmicrocontroller to turn the power off. 7*4882a593Smuzhiyun 8*4882a593SmuzhiyunSynology NAS devices use a similar scheme, but a different baud rate, 9*4882a593Smuzhiyun9600, and a different character, '1'. 10*4882a593Smuzhiyun 11*4882a593SmuzhiyunRequired Properties: 12*4882a593Smuzhiyun- compatible: Should be "qnap,power-off" or "synology,power-off" 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun- reg: Address and length of the register set for UART1 15*4882a593Smuzhiyun- clocks: tclk clock 16