Rob Gardner <robmatic@xxxxxxxxx> writes: > From 018343ce2e679d97283fb51da25c43aa876d087a Mon Sep 17 00:00:00 2001 > From: Rob Gardner <robmatic@xxxxxxxxx> > Date: Sun, 25 Aug 2013 16:02:23 -0600 > Subject: [PATCH net,stable] net: usb: Add HP hs2434 device to ZLP exception table > > This patch adds another entry (HP hs2434 Mobile Broadband) to the list > of exceptional devices that require a zero length packet in order to > function properly. This list was added in commit 844e88f0. The hs2434 > is manufactured by Sierra Wireless, who also produces the MC7710, > which the ZLP exception list was created for in the first place. So > hopefully it is just this one producer's devices that will need this > workaround. > > Tested on a DM1-4310NR HP notebook, which does not function without this > change. > > Signed-off-by: Rob Gardner <robmatic@xxxxxxxxx> Acked-by: Bjørn Mork <bjorn@xxxxxxx> Thanks a lot for doing this! As I warned about in http://www.spinics.net/lists/netdev/msg223742.html I am now going to reconsider what do do about this issue. There are only two devices in the exception list so far, but I would like to note that this represents 100% of the Sierra Wireless MBIM devices we *know* are tested with this driver. Testing for this firmware bug and verifying the workaround on a new device is currently hard, requiring more skills than most end users can be expected to have. I therefore find it very likely that we will miss (or quite possible have missed already) a number of devices which should have been in this exception list. I believe we have to do something about this. Ideas are welcome. Bjørn -- 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