HOOK_POWER_PRE
skt->power_hook(skt, HOOK_POWER_PRE);
if ((operation != HOOK_POWER_PRE) && (operation != HOOK_POWER_POST))
if (operation == HOOK_POWER_PRE)
if (operation == HOOK_POWER_PRE)
if (operation == HOOK_POWER_PRE)
if (operation == HOOK_POWER_PRE)
if (operation == HOOK_POWER_PRE)