[usb] Kingston 8Gb is not usable
Hans Petter Selasky
hselasky at c2i.net
Wed Jun 27 20:23:00 UTC 2012
On Wednesday 27 June 2012 19:51:15 Alexander Motin wrote:
> On 06/27/12 19:26, Hans Petter Selasky wrote:
> > On Wednesday 27 June 2012 18:15:24 Hans Petter Selasky wrote:
> >> ERR=STALLED
> >
> > Retrying might not work, until sense is cleared, due to stalled error.
> >
> > MAV: Maybe that failed prevent-allow medium removal left a sense error
> > that needs to be cleared.
>
> It should be cleared by fetching sense command. As I was assured by
> several people, it is SIM (controller driver, umass) obligation to fetch
> sense and respectively clear it when error detected. But not sure what
> should umass do if this device STALLs. May be should try to do it also.
> So far I haven't see any properly fetched sense from it in provided logs.
umass has a reset mechanism for clearing the stall. But it will significantly
make umass more complicated.
--HPS
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