#3 keyboard-like wake-up functionality

open
nobody
None
5
2011-11-01
2006-03-17
oliver
No

AFAIK you can set up a motherbord to supply the 5VSB on
a USB header. This is used so that keyboards can wake
up the PC.

Woudln't it be possible to use this same mechanism as a
'power on' kind of thing? (Maybe as a 'from standby?')

If it isn't possible because you'd have to
emulate/provide a keybord driver/device ID/thing, then
mabye add 2 pins to be used to connect to the power
button directly (in parallel with the real power
switch) so that it'll send a 'switch' signal.

This would require (beside the 5VSB hook up) that you
store one IR code in the IC that, when triggerd (in
offline mode?) flips the switch pinout.

If it's an I/O pin, you could even use the pin to
detect wether the switch is being pushed (while D/Ced
from the motherboard) in 'online' mode to set the IR
code to be used.

Discussion

  • Bas Wijnen

    Bas Wijnen - 2007-01-02

    Logged In: YES
    user_id=42389
    Originator: NO

    If the device is powered, it should be possible. The usb standard defines a way to signal a reset, which can be initiated by the device or the host. I expect a computer to power up in response. The controller is able to emit this signal, too.

     
  • Nobody/Anonymous

    Logged In: NO

    I have to second this request. A way to power-on using the IR remote would be a great asset. May also be possible using the Wake on LAN or Wake on Ring headers in most PC's. Save an IR code to flash and then attempt to wake the PC when the code is received.

     
  • Bas Wijnen

    Bas Wijnen - 2007-11-25

    Logged In: YES
    user_id=42389
    Originator: NO

    Saving to flash will certainly work. Saving to ram may also work (although I'm not sure if there's enough ram available for that...) If saving it ram does work, it is preferrable for testing at least, because flash writes should be minimized. I might do some experiments with this on my bios (see ICP feature request). I'll keep you posted if things happen. Could take some time though. ;-)

     
  • Tormod Volden

    Tormod Volden - 2011-11-01
    • summary: keybord wake like wake up functionality. --> keyboard-like wake-up functionality
     

Log in to post a comment.

Get latest updates about Open Source Projects, Conferences and News.

Sign up for the SourceForge newsletter:

JavaScript is required for this form.





No, thanks