On Tue, Dec 08, 2009 at 10:24:29AM -0500, Alan Stern wrote: > This patch (as1311b) fixes a problem in usb-storage: Some devices are > pretty broken when it comes to reporting sense data. The information > they send back indicates that they have more than 18 bytes of sense > data available, but when the system asks for more than 18 they fail or > hang. The symptom is that probing fails with multiple resets. > > The patch adds a new BAD_SENSE flag to indicate that usb-storage > should never ask for more than 18 bytes of sense data. The flag can > be set in an unusual_devs entry or via the "quirks=" module parameter, > and it is set automatically whenever a REQUEST SENSE command for more > than 18 bytes fails or times out. > > An unusual_devs entry is added for the Agfa photo frame, which uses a > Prolific chip having this bug. > > Signed-off-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> > Tested-by: Daniel Kukula <daniel.kuku@xxxxxxxxx> > > --- > > The first version of this patch accidentally omitted a mask entry for > the new flag. Please replace it with this updated version. As I messed up and applied your original, can you send the diff of this one and your original so that I can apply that? thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
