This command sets whether to look for valid RTC time before enabling iButton
| n=0 | iButton LED turns on immediately when Linux boots |
| n=1 | iButton LED turns on when RTC time is available, if no RTC time is available, iButton turns on ~5mins after Linux boots (Default) |
Examples:
See also: RFID Card Reader Support
Firmware revision 2.0.5.3396