Messages in this thread | | | Date | Mon, 14 Jul 2008 17:33:58 -0700 (PDT) | From | Linus Torvalds <> | Subject | Re: [GIT *] Allow request_firmware() to be satisfied from in-kernel, use it in more drivers. |
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On Mon, 14 Jul 2008, david@lang.hm wrote: > > there was also the issue that was raised about how to handle firmware during > suspend/resume. I don't remember seeing a happy solution to that one.
I don't understand why this even keeps coming up.
The only reliable way to handle it is to load the firmware before the suspend happens - preferably by simply never unloading it in the first place.
Anything else is fraught with problems.
Stuff that expects to eject itself anyway(*) over a suspend event can obviously decide to throw it away and require a reload at resume time (by virtue of simply re-discovering the whole device!).
Everybody else should just keep the firmware in memory in the driver.
Does it waste some ram? Sure. Tough.
Linus
(*) eg some random USB device that really _really_ doesn't care and isn't expected to be involved in any filesystem access - say a webcam.
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