On Tue, 16 Sep 2014, Mark wrote: > On Tue, 16 Sep 2014 11:40:03 -0400 (EDT) > Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote: > > > On Tue, 16 Sep 2014, Mark wrote: > > > ... > > > Another issue relates to manufacturer USB ID screw-ups. The Buffalo > > > USB-SCSI cable is a good example. According to the Windows INF file > > > available from > > > http://buffalo.jp/download/driver/hd/mos-s640usb.html > > > its USB ID is 0411:0001. > > > > > > However, according to the INF file from > > > http://buffalo.jp/download/driver/lan/lua-tx.html > > > the LUA-TX USB-Ethernet adapter can have ID 0411:0005 or 0411:0001... sigh. > > > > > > Given that, would it be possible/advisable to have an unusual-devs.h entry > > > for the Buffalo USB-SCSI cable? > > > > It would be nice to get confirmation first from somebody who has one of > > those cables. > > Someone reported an issue related to that in 2006 on the Japanese > debian-users list: > http://lists.debian.or.jp/debian-users/200608/msg00010.html > > They were using a Debian kernel based on 2.6.17, and based on the dmesg > output both usb-storage and pegasus drivers try to claim the device. I'll > paste some excerpts below. Was the device a USB-SCSI cable or a USB-Ethernet adapter? If it was an ethernet adapter then we don't want to include it in unusual_devs.h. If it was a SCSI cable then we do. > Since a quirk entry in unusual-devs.h would only apply to usb-storage, it > should not cause additional problems for a USB-Ethernet device with the > same ID, right? It would, because it would cause usb-storage to try to bind to the ethernet device, thereby preventing the pegasus driver from binding. > I guess it would be necessary to blacklist the pegasus module in order to > use a Buffalo USB-SCSI cable (with or without quirk). Yes, apparently so. > lsusb reported > Bus 002 Device 010: ID 0411:0001 MelCo., Inc. LUA-TX Ethernet [pegasus] > (because that's what's in the usb.ids list for product 0411:0001) > > From /proc/bus/usb/devices > > T: Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 10 Spd=12 MxCh= 0 > D: Ver= 1.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 > P: Vendor=0411 ProdID=0001 Rev= 1.00 > S: Manufacturer=Shuttle Technology Inc. > S: Product=eUSCSI Bridge Ver 1.11 > S: SerialNumber=07 Okay, so it was a SCSI cable. In that case, go ahead and add it to unusual_devs.h. Do you know what product ID the ethernet adapter actually uses? Alan Stern -- 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
