Re: [PATCH] move eject code from zd1211rw to usb-storage

From: Josua Dietze
Date: Wed Dec 16 2009 - 06:42:50 EST


Oliver Neukum schrieb:

Am Dienstag, 15. Dezember 2009 19:03:00 schrieb Matthew Dharm:
This would break existing systems and thus introduce a regression.
We'd need to go through a feature removal process. For the time being
I see no alternative to Seife's patch, as we cannot introduce ejection
code to another wireless driver and need to support these devices.
The right answer here is neither to move the eject code nor to introduce
more of it. New devices should be supported via userspace.

Usually I would agree, but in this case the vendor reused IDs.
The legacy kernel space switcher and user space would race.

User space can test for device/interface class (which will supposedly change even if the IDs do not) and base it's actions on that. It was done before.

Apart from that issue, I can see that there is a problem with a device that has worked without "external" handling up to now. Unfortunately, I can't think about a clean solution.

Josua
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