Re: [PATCH] updates for KLSI usb->ethernet

From: Greg KH (
Date: Wed Feb 07 2001 - 03:51:26 EST

On Wed, Feb 07, 2001 at 12:38:52AM -0600, Eric Sandeen wrote:
> Any thoughts on what would be more correct,
> a) device descriptor silently changes
> b) device magically disconnects/reconnects on its own
> Both seem a bit odd, but take your pick. :)

b) is more like other devices. They use 1 descriptor id for the "I have
no firmware" state, then after firmware is downloaded, they disconnect,
and reconnect with a new id which means they have the firmware loaded.

Lots of usb-serial devices do this, and so does just about any
Anchor/Cypress EZ-USB chip based design.

Silently changing descriptor ids while connected is just asking for
trouble :)

You also might want to post this to linux-usb-devel as that's where the
authors of this driver are known to hang out.

greg k-h

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