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gregkh / usbutils

USB utilities for Linux, including lsusb
http://www.linux-usb.org
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Not working with raspberry pi Zero w ? #115

Closed geminigeek closed 3 years ago

geminigeek commented 3 years ago

hi,

i tried to use usbreset on a huawei usb 4g modem after using usb_modswitch its not working ?

the command to usb_modswitch is below usb_modeswitch -v 12d1 -p 157c -P 1506 -M 55534243123456780000000000000011062000000100000000000000000000 -i 2

here is output of the process i tried

root@PIZeroBot:~/reset2# lsusb Bus 001 Device 004: ID 12d1:1506 Huawei Technologies Co., Ltd. Modem/Networkcard Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub root@PIZeroBot:~/reset2# ./usbreset 12d1:1506 Resetting HUAWEI_MOBILE ... ok root@PIZeroBot:~/reset2# lsusb Bus 001 Device 004: ID 12d1:1506 Huawei Technologies Co., Ltd. Modem/Networkcard Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Regards Dee

gregkh commented 3 years ago

On Wed, Oct 14, 2020 at 06:17:00AM -0700, geminigeek wrote:

hi,

i tried to use usbreset on a huawei usb 4g modem after using usb_modswitch its not working ?

It is never guaranteed to work at all, you need a USB hub that supports this feature. I do not see a hub in your USB chain (root hubs do not count).

thanks,

greg k-h

geminigeek commented 3 years ago

hi,

tried with a hub

root@PIZeroBot:~# lsusb Bus 001 Device 007: ID 12d1:1506 Huawei Technologies Co., Ltd. Modem/Networkcard Bus 001 Device 005: ID 1a40:0201 Terminus Technology Inc. FE 2.1 7-port Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub root@PIZeroBot:~# ./reset2/usbreset 001/007 Resetting HUAWEI_MOBILE ... ok root@PIZeroBot:~# lsusb Bus 001 Device 007: ID 12d1:1506 Huawei Technologies Co., Ltd. Modem/Networkcard Bus 001 Device 005: ID 1a40:0201 Terminus Technology Inc. FE 2.1 7-port Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

gregkh commented 3 years ago

On Wed, Oct 14, 2020 at 07:34:57AM -0700, geminigeek wrote:

hi,

tried with a hub

root@PIZeroBot:~# lsusb Bus 001 Device 007: ID 12d1:1506 Huawei Technologies Co., Ltd. Modem/Networkcard Bus 001 Device 005: ID 1a40:0201 Terminus Technology Inc. FE 2.1 7-port Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub root@PIZeroBot:~# ./reset2/usbreset 001/007 Resetting HUAWEI_MOBILE ... ok root@PIZeroBot:~# lsusb Bus 001 Device 007: ID 12d1:1506 Huawei Technologies Co., Ltd. Modem/Networkcard Bus 001 Device 005: ID 1a40:0201 Terminus Technology Inc. FE 2.1 7-port Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

I have no idea what you are expecting to have happen here, did the hub reset itself?

And you need to reset the hub, not the device, try 001/005, right?

Why do you think resetting the device is needed?

geminigeek commented 3 years ago

hi

Sorry for the confusion if any

let me suggest what i want to achieve . when i insert the usb modem it shows up as usb pendrive. i usb_modeswitch it to modem mode . with usbreset i was hopping the modem will come back to pendrive mode as it happens when i physically plug out and plug in the modem .

there is progress seems the modem is getting a new device id now

root@PIZeroBot:~/reset2# lsusb Bus 001 Device 009: ID 12d1:1506 Huawei Technologies Co., Ltd. Modem/Networkcard Bus 001 Device 004: ID 1a40:0201 Terminus Technology Inc. FE 2.1 7-port Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub root@PIZeroBot:~/reset2# ./usbreset 001/004 Resetting USB 2.0 Hub [MTT] ... ok root@PIZeroBot:~/reset2# lsusb Bus 001 Device 010: ID 12d1:1506 Huawei Technologies Co., Ltd. Modem/Networkcard Bus 001 Device 004: ID 1a40:0201 Terminus Technology Inc. FE 2.1 7-port Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

gregkh commented 3 years ago

On Wed, Oct 14, 2020 at 07:51:13AM -0700, geminigeek wrote:

hi

Sorry for the confusion if any

let me suggest what i want to achieve . when i insert the usb modem it shows up as usb pendrive. i usb_modeswitch it to modem mode . with usbreset i was hopping the modem will come back to pendrive mode as it happens when i physically plug out and plug in the modem .

I have no idea if that would work, you really are on your own here, usbreset is a "you are lucky if it works" type of program, because it is not required to be supported by USB hardware.

good luck!

greg k-h

gregkh commented 3 years ago

Closing out here, usbreset is a "user beware" program, as it says.