soft power-off for USB controllers
Posted: Sun May 08, 2011 3:08 pm
Hi,
I currently use another kind of thin client and want to migrate to the fitPC.
We run our systems on remote sites, and can't service them frequently, therefore we need them to be very reliable.
From our experience some USB peripherals such as GSM modems sometimes fail, and the only way to resume normal operation is to disconnect the power that they receive through the USB port and reconnect it (this can be simply done by plugging the USB cable off of plugging the computer's powercord off and then connecting it again). The problem is that this cannot be done remotely.
I wanted to ask if the fitPC can power off its USB ports in software. Some ways that I thought that could do it (please let me know if any of these is possible):
(1) putting the system into sleep mode and then waking it up on a timer (does sleep/standby mode powers off the USB ports? Can the computer resume automatically from a sleep state?)
(2) Shutting down the system and using a BIOS wake-on-time feature (I think the forum says that it is not available in the FitPC, is it?)
(3) some software code that can actually power off the USB and then power it on.
BTW - we usually use ubuntu 9.04 (but can upgrade to any version).
Thanks in advance,
Giora
I currently use another kind of thin client and want to migrate to the fitPC.
We run our systems on remote sites, and can't service them frequently, therefore we need them to be very reliable.
From our experience some USB peripherals such as GSM modems sometimes fail, and the only way to resume normal operation is to disconnect the power that they receive through the USB port and reconnect it (this can be simply done by plugging the USB cable off of plugging the computer's powercord off and then connecting it again). The problem is that this cannot be done remotely.
I wanted to ask if the fitPC can power off its USB ports in software. Some ways that I thought that could do it (please let me know if any of these is possible):
(1) putting the system into sleep mode and then waking it up on a timer (does sleep/standby mode powers off the USB ports? Can the computer resume automatically from a sleep state?)
(2) Shutting down the system and using a BIOS wake-on-time feature (I think the forum says that it is not available in the FitPC, is it?)
(3) some software code that can actually power off the USB and then power it on.
BTW - we usually use ubuntu 9.04 (but can upgrade to any version).
Thanks in advance,
Giora