Hmm...
Let me do a quick check here -
This firmware (most certainly not the same version or model as yours) has two clocks in the /sys tree, rtc0 and rtc1.
rtc1 is the only one with a bunch of exposed functions:
Code:
[root@kindle rtc1]# ls -l
-r--r--r-- 1 root root 4096 Oct 7 01:50 date
-r--r--r-- 1 root root 4096 Oct 7 01:50 dev
lrwxrwxrwx 1 root root 0 Oct 7 01:50 device -> ../../../pmic_rtc.1
-rw-r--r-- 1 root root 4096 Oct 7 01:50 max_user_freq
-r--r--r-- 1 root root 4096 Oct 7 01:50 name
drwxr-xr-x 2 root root 0 Oct 7 01:50 power
-r--r--r-- 1 root root 4096 Oct 7 01:50 since_epoch
lrwxrwxrwx 1 root root 0 Oct 7 01:50 subsystem -> ../../../../../class/rtc
-r--r--r-- 1 root root 4096 Oct 7 01:50 time
-rw-r--r-- 1 root root 4096 Oct 7 01:50 uevent
-rw-r--r-- 1 root root 4096 Oct 7 01:50 wakealarm
[root@kindle rtc1]# cat wakealarm
[root@kindle rtc1]# cat time
18:34:34
[root@kindle rtc1]# pwd
/sys/class/rtc/rtc1
wakealarm is marked r/w for 'root' -
but I do not get anything back from it either.
= = = = =
There was a post or two around here in a thread about someone trying to use the timer.
I think they posted that it only accepted a value during the 'ready to sleep' kernel state.
Some thread searching might turn it up.