On Fri, Feb 01, 2008 at 10:17:24AM -0500, Alan Stern wrote: > On Thu, 31 Jan 2008, David Brownell wrote: > > > On Thursday 31 January 2008, Alan Stern wrote: > > > The interesting difference lay in what Windows did when the Get-Max-LUN > > > stalled. It sent a Clear-Halt request to endpoint 0! > > > > Yes that *is* strange! Considering that ep0 wasn't stalling ... > > No, ep0 did stall (at least, that's the way it looks from the SnoopyPro > trace and that's what happened under Linux). This was in response to > the Bulk-only-transport class-specific Get-Max-LUN request. Devices > are permitted not to support that request if they have only one LUN. > > Right now usb-storage responds to this stall by clearing the halt > feature from the bulk-in and bulk-out endpoints, not because the spec > says to do so but because one ancient device (a ZIP-100) requires it. > Now it looks as though we've found a device which can't handle it. > Time for another quirk?
Do we really need another quirk? If the 'popular' OS does it, it's likely
safe to do for all deveices when GetMaxLUN fails...
Matt
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Matthew Dharm Home: [EMAIL PROTECTED]
Maintainer, Linux USB Mass Storage Driver
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