> In order to use, I put the following line into my profile: > > bind -a '#r' /dev > > The realtime-clock seems to be successfully recognized > by the system as device /dev/rtc. However, Plan 9 does > not seem to use it; after every reboot the date and > time is reset.
The '#r' device for the raspberry pi (/sys/src/9/bcm/devfakertc.c) is not an actual clock driver, just a hack to prevent annoying prompts for date and time when booting by using the kernel build time as an initial guess. It probably wasn't a good idea, because if you aren't connected to a network to get the time corrected by aux/timesync, your clock will go backwards every time you boot. This confuses things like "mk". If you want to use the RasClock (looks like a useful device), you (or somebody) will need to write a driver for it. And if anyone wants to stop being misled by the fakertc device, just comment it out in /sys/src/9/bcm/pi and build a new kernel...