Messages in this thread | | | Date | Sun, 28 Mar 2021 10:58:23 -0400 | From | Alan Stern <> | Subject | Re: [PATCH v3 0/4] scsi: add runtime PM workaround for SD cardreaders |
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On Sun, Mar 28, 2021 at 12:25:27PM +0200, Martin Kepplinger wrote: > hi, > > In short: there are SD cardreaders that send MEDIA_CHANGED on > (runtime) resume. We cannot use runtime PM with these devices as > I/O always fails. I'd like to discuss a way to fix this > or at least allow us to work around this problem:
In fact, as far as I know _all_ USB SD card readers send Media Changed notifications on resume. Maybe there are some that don't, but I haven't heard of any.
Alan Stern
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