#3355: Wireless shutdown on Laptop Lid Close
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Reporter: kimquirk | Owner: cjb
Type: defect | Status: new
Priority: high | Milestone: Update.1
Component: power manager (OHM) | Version:
Resolution: | Keywords: update.1?
Verified: 0 |
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Comment(by dwmw2):
Replying to [comment:26 ashish]:
> I guess you are talking of hardware RESET line, which I believe should
be easier, and since device is out of USB bus this approach should consume
minimum power. However, device state will be lost and a fresh device
--including firmware download from host-- will appear on wakeup.
Yes. That's actually a good feature; we know the driver copes with that
situation well, because it sees a completely new instance of the hardware
and doesn't expect any state to be preserved.
> I think RESET/HALT command may not be feasible at this point.
RESET/HALT works for resetting the active antennae so that we can reload
the firmware on them, at least most of the time. The active antennae
actually come out of reset after 5 seconds and run their internal
firmware, but that shouldn't happen on the XO. This approach would require
more work in the driver, because I believe it doesn't cause the device to
detach and reappear on the USB bus.
> I will check this with our hardware folks, all the possibilities, and
will update you soon.
Thank you.
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Ticket URL: <http://dev.laptop.org/ticket/3355#comment:27>
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