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SubjectRe: [linux-usb-devel] Re: OHCI problems with suspend/resume
Pavel Machek wrote:

>>USB drivers don't talk suspend/resume yet, so they
>>won't notice missing features there. Regressions
>>are a different story though.
>>
>>But I can imagine that usb-storage (or is that SCSI?)
>>might want to veto suspending devices that are being
>>used for some kinds of i/o. Eventually it should exist.
>
>
> For what kind of I/O? I do not see a reason for disk to veto
> suspend. CD-burner might want to do that, but it still would be bad
> idea... (Running on battery, battery goes low, and you destroy your CD
> *and* your filesystem.

If it's in the middle of any kind of write, suspending would
seem to be unwise. Say, writing to a swap partition...

Mostly I'm just saying that if vetoing ever makes sense
(and I understand that it does), USB drivers will need
to understand it too.

- Dave


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