Your message dated Thu, 1 May 2025 13:30:52 +0200 with message-id <[email protected]> and subject line Re: Bug#634916: usb-modeswitch: seems to have no effect on Huawei E169 has caused the Debian Bug report #634916, regarding Linux modeswitches some 3G dongles in kernelland (duplicates userland functionality) to be marked as done.
This means that you claim that the problem has been dealt with. If this is not the case it is now your responsibility to reopen the Bug report if necessary, and/or fix the problem forthwith. (NB: If you are a system administrator and have no idea what this message is talking about, this may indicate a serious mail system misconfiguration somewhere. Please contact [email protected] immediately.) -- 634916: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=634916 Debian Bug Tracking System Contact [email protected] with problems
--- Begin Message ---Package: usb-modeswitch Version: 1.1.8-1 Severity: normal Hello! I installed usb-modeswitch in order to prevent my USB HSDPA modem to be seen as a storage device. My modem is a Huawei E169, which has apparently the same vendor and product IDs as the Huawei E620: $ lsusb | grep Huawei Bus 006 Device 005: ID 12d1:1001 Huawei Technologies Co., Ltd. E620 USB Modem It seems to me that this device is known to usb-modeswitch-data: $ grep -A 1 E169 /lib/udev/rules.d/40-usb_modeswitch.rules # Huawei E169 ATTRS{idVendor}=="12d1", ATTRS{idProduct}=="1001", RUN+="usb_modeswitch '%b/%k'" Well, if I plug the USB modem into a USB port, I get the following relevant /var/log/syslog lines: kernel: [48971.464031] usb 6-1: new full speed USB device number 2 using uhci_hcd kernel: [48971.626112] usb 6-1: New USB device found, idVendor=12d1, idProduct=1001 kernel: [48971.626115] usb 6-1: New USB device strings: Mfr=1, Product=2, SerialNumber=1 kernel: [48971.626117] usb 6-1: Product: HUAWEI Mobile kernel: [48971.626119] usb 6-1: Manufacturer: ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ kernel: [48971.626121] usb 6-1: SerialNumber: ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ udevd[28725]: failed to execute '/lib/udev/mtp-probe' 'mtp-probe /sys/devices/pci0000:00/0000:00:1d.1/usb6/6-1 6 2': No such file or directory kernel: [48972.175513] usbcore: registered new interface driver uas kernel: [48972.204572] Initializing USB Mass Storage driver... kernel: [48972.207123] scsi4 : usb-storage 6-1:1.0 kernel: [48972.207285] usbcore: registered new interface driver usb-storage kernel: [48972.207287] USB Mass Storage support registered. kernel: [48972.216084] usb 6-1: USB disconnect, device number 2 kernel: [48972.952054] usb 6-1: new full speed USB device number 3 using uhci_hcd kernel: [48973.116093] usb 6-1: New USB device found, idVendor=12d1, idProduct=1001 kernel: [48973.116096] usb 6-1: New USB device strings: Mfr=1, Product=2, SerialNumber=1 kernel: [48973.116099] usb 6-1: Product: HUAWEI Mobile kernel: [48973.116101] usb 6-1: Manufacturer: ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ kernel: [48973.116103] usb 6-1: SerialNumber: ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ udevd[28744]: failed to execute '/lib/udev/mtp-probe' 'mtp-probe /sys/devices/pci0000:00/0000:00:1d.1/usb6/6-1 6 3': No such file or directory kernel: [48973.127105] scsi8 : usb-storage 6-1:1.3 kernel: [48973.166893] usbcore: registered new interface driver usbserial kernel: [48973.167822] USB Serial support registered for generic kernel: [48973.168839] usbcore: registered new interface driver usbserial_generic kernel: [48973.168842] usbserial: USB Serial Driver core kernel: [48973.194559] USB Serial support registered for GSM modem (1-port) kernel: [48973.195691] option 6-1:1.0: GSM modem (1-port) converter detected kernel: [48973.196452] usb 6-1: GSM modem (1-port) converter now attached to ttyUSB0 kernel: [48973.196469] option 6-1:1.1: GSM modem (1-port) converter detected kernel: [48973.200295] usb 6-1: GSM modem (1-port) converter now attached to ttyUSB1 kernel: [48973.200320] option 6-1:1.2: GSM modem (1-port) converter detected kernel: [48973.200572] usb 6-1: GSM modem (1-port) converter now attached to ttyUSB2 kernel: [48973.201001] usbcore: registered new interface driver option kernel: [48973.201004] option: v0.7.2:USB Driver for GSM modems kernel: [48974.131117] scsi 8:0:0:0: CD-ROM HUAWEI Mass Storage 2.31 PQ: 0 ANSI: 2 kernel: [48974.134133] scsi 8:0:0:1: Direct-Access HUAWEI SD Storage 2.31 PQ: 0 ANSI: 2 kernel: [48974.147102] sr1: scsi-1 drive kernel: [48974.147238] sr 8:0:0:0: Attached scsi CD-ROM sr1 kernel: [48974.147317] sr 8:0:0:0: Attached scsi generic sg2 type 5 kernel: [48974.147460] sd 8:0:0:1: Attached scsi generic sg3 type 0 kernel: [48974.189119] sd 8:0:0:1: [sdb] Attached SCSI removable disk This seems to mean that the device is seen as both a USB modem and a USB mass storage / CD-ROM device. Indeed: $ ls -altrF /dev/ttyU* /dev/sg[23] /dev/sdb* /dev/sr1 /dev/scd1 /dev/cdrom4 crw-rw---- 1 root dialout 188, 1 Jul 20 22:44 /dev/ttyUSB1 crw-rw---- 1 root dialout 188, 2 Jul 20 22:44 /dev/ttyUSB2 crw-rw---- 1 root dialout 188, 0 Jul 20 22:44 /dev/ttyUSB0 crw-rw---- 1 root cdrom 21, 2 Jul 20 22:44 /dev/sg2 crw------- 1 root root 21, 3 Jul 20 22:44 /dev/sg3 brw-rw---- 1 root floppy 8, 16 Jul 20 22:44 /dev/sdb brw-rw---- 1 root cdrom 11, 1 Jul 20 22:45 /dev/sr1 lrwxrwxrwx 1 root root 3 Jul 20 22:45 /dev/scd1 -> sr1 lrwxrwxrwx 1 root root 3 Jul 20 22:45 /dev/cdrom4 -> sr1 exactly as when I tried *before* installing usb-modeswitch ! I expected to only see /dev/ttyUSB* files. What's wrong? What did I fail to understand? Please help and/or clarify and/or fix the issue. Thanks for your time! -- System Information: Debian Release: wheezy/sid APT prefers testing APT policy: (800, 'testing'), (500, 'unstable') Architecture: amd64 (x86_64) Kernel: Linux 2.6.39-2-amd64 (SMP w/1 CPU core) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Versions of packages usb-modeswitch depends on: ii dpkg 1.16.0.3 Debian package management system ii libc6 2.13-7 Embedded GNU C Library: Shared lib ii libusb-0.1-4 2:0.1.12-17 userspace USB programming library ii tcl 8.5.0-2 The Tool Command Language (default ii tcl8.5 [tclsh] 8.5.10-1 Tcl (the Tool Command Language) v8 ii usb-modeswitch-data 20110619-1 mode switching data for usb-modesw usb-modeswitch recommends no packages. Versions of packages usb-modeswitch suggests: pn comgt <none> (no description available) pn wvdial <none> (no description available) -- no debconf information
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--- Begin Message ---Hi, On Thu, Aug 11, 2011 at 10:57:24AM +0200, Didier Raboud wrote: > reassign 634916 src:linux-2.6 3.0.0-1 > retitle 634916 Linux modeswitches some 3G dongles in kernelland (duplicates > userland functionality) > thanks > > Dear linux-2.6 maintainers, > > I'm hereby re-assigning the #634916 bug to the Linux kernel, as per the > discussion held with Josua Dietze, the usb-modeswitch upstream developer. > > In summary: the Linux kernel "modeswitches" some 3G dongles where > usb-modeswitch is supposed to be the userland tool doing this. Having this > behaviour hardcoded in Linux implies less flexibility and duplicates > a functionality already present in userland _today_. > > Please ask if you need more information, cheers, I have re-read the full bug today to do some BTS clean-up for src:linux and given there was not further action to "address" this in upstream I think it's time to close the bug. AFAIU, in kernel mode switching is deprecated years ago, so I do not expect development in that part of the code anymore and that devices falling in this class will fade out as well. Federico, I'm sorry you had to wait that long. If you feel strong about the issue I suggest to re-forward it to the upstream list including Josua, and see if there is still some interest in adressing this misbehaviour. My udnerstanding is that there is as well not major harm caused by this. I will thus close the bug with this explanation, keeping Josua as well in the loop in case he now disagrees. Regards, Salvatore
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