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35 lines
1.5 KiB
Bash
35 lines
1.5 KiB
Bash
#!/bin/sh
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export PATH="${PATH}:/sbin:/usr/sbin"
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echo "[$(date +'%x @ %X')] Kobo Suspend: BEGIN!"
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# Disable wifi
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if lsmod | grep -q sdio_wifi_pwr ; then
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wlarm_le -i eth0 down
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ifconfig eth0 down
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rmmod -r dhd
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rmmod -r sdio_wifi_pwr
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echo "[$(date +'%x @ %X')] Kobo Suspend: Killed WiFi"
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fi
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# Go to sleep
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current_wakeup_count="$(cat /sys/power/wakeup_count)"
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echo "[$(date +'%x @ %X')] Kobo Suspend: Current WakeUp count: ${current_wakeup_count}"
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echo 1 > /sys/power/state-extended
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echo "[$(date +'%x @ %X')] Kobo Suspend: Asked for a Sleep mode suspend"
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sleep 2
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echo "[$(date +'%x @ %X')] Kobo Suspend: Waited for 2s because of reasons..."
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sync
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echo "[$(date +'%x @ %X')] Kobo Suspend: Synced FS"
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echo ${current_wakeup_count} > /sys/power/wakeup_count
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echo "[$(date +'%x @ %X')] Kobo Suspend: Wrote WakeUp count: ${current_wakeup_count} ($?)"
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echo mem > /sys/power/state
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echo "[$(date +'%x @ %X')] Kobo Suspend: Asked to suspend to RAM... ZzZ ZzZ ZzZ? ($?)"
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## NOTE: Ideally, we'd need a way to warn the user that suspending gloriously failed at this point...
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## We can safely assume that just from a non-zero return code, without looking at the detailed stderr message
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## (most of the failures we'll see are -EBUSY anyway)
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## For reference, when that happens to nickel, it appears to keep retrying to wakeup & sleep ad nauseam,
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## which is where the non-sensical 1 -> mem -> 0 loop idea comes from...
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## cf. nickel_suspend_strace.txt for more details.
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echo "[$(date +'%x @ %X')] Kobo Suspend: END! (WakeUp count: $(cat /sys/power/wakeup_count))"
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