Re: [PATCH 1/5] SCSI scanning and removal fixes

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Luben Tuikov wrote:
It is very bad to have to punish all devices on the
"bus" just because one device failed.  Isn't there a better way
to recover(*) a failed USB Storage device?

usb-storage implements scsi_mod bus reset as USB port reset. This affects only the failing device.

There is one scsi_mod bus per SCSI target in usb-storage. There is no mapping from scsi_mod bus to USB bus. The same is true for sbp2. Usb-storage and sbp2 actually don't care at all for the bus a device is attached to.

(Or at least that's how I understand the USB subsystem; I'm sure about the 1394 subsystem.)
--
Stefan Richter
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http://arcgraph.de/sr/
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