Suspend & Resume Testing; Gpio Testing - Embest SBC8600B User Manual

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3.11.16 Suspend & Resume Testing
Execute the following instruction to enter suspend state

root@arm:~# echo mem > /sys/power/state
[ 4351.715262] PM: Syncing filesystems ... done.
[ 4351.729920] Freezing user space processes ... (elapsed 0.001 seconds) done.
[ 4351.738777] Freezing remaining freezable tasks ... (elapsed 0.001 seconds)
done.
[ 4351.747471] Suspending console(s) (use no_console_suspend to debug)
When system suspends finished, as above messages showing, use Uart Input,Touch
Screen or Button S2 to trigger system resuming.
[ 4352.047646] PM: suspend of devices complete after 293.057 msecs
[ 4352.049277] PM: late suspend of devices complete after 1.602 msecs
[ 4352.051137] PM: noirq suspend of devices complete after 1.833 msecs
[ 4352.051147] PM: Successfully put all powerdomains to target state
[ 4352.051147] PM: Wakeup source UART
[ 4352.068706] PM: noirq resume of devices complete after 17.431 msecs
[ 4352.070122] PM: early resume of devices complete after 1.071 msecs
[ 4352.070950] net eth0: initializing cpsw version 1.12 (0)
[ 4352.075081] sgtl5000 0-000a: Failed to get mclock: -2
[ 4352.145051] net eth0: phy found : id is : 0x4dd072
[ 4352.147181] net eth1: initializing cpsw version 1.12 (0)
[ 4352.150627] sgtl5000 0-000a: Failed to get mclock: -2
[ 4352.225065] net eth1: phy found : id is : 0x4dd072
[ 4352.344861] PM: resume of devices complete after 274.700 msecs
[ 4352.422824] Restarting tasks ...
[ 4352.426558] usb 2-1: USB disconnect, device number 2
[ 4352.454743] done

3.11.17 GPIO Testing

Below steps show to test GPIO0_19 and GPIO2_0 of J7
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