Can't bios wakeup with 2.6.38.8 /proc/rtc not enabled

[MBantz]

I try and write to /proc/driver/rtc to set wakeup of the system (here to use MythTV) - but get the error: "no such file or catalogue"

I was able to write to /proc/driver/rtc in earlier kernels but I need to use the new kernel.

Does anyone know if rtc is enabled in the kernel config for 2.6.38.8 (i.e. if Device drivers->Real time clock is enabled in kernel Config)?

I once investigated the issue for 2.6.26:

After going through the entire .config for the kernels 2.6.26 and 2.6.27 (this took a while, but was -very- interesting), the /proc/driver/rtc in Device drivers->Real time clock is not enabled (with an asterisk). Enabling this and building the kernel gave access to /proc/driver/rtc.

[kjpetrie]

Try grep 'RTC' /usr/src/kernel-devel-`uname -r`/.config.

On 2.6.38.7-pclos1.bfs I see:

Code: [Select]


CONFIG_RTC_INTF_SYSFS=y
# CONFIG_RTC_INTF_PROC is not set

Could that be the answer?

Anything useful in /sys/devices/isa/power/?