[SOLVED] usb_modeswitch not working; lsusb indicate "unable to initialize libusb: -99"; howto?

floppy_stuttgart · 06-14-2013, 04:41 AM

Hello,
by connecting a usb gsm modem on a selfbuild kernel, the usb is recognized because dmesg show messages like "New USB device found, idVendor=0af0, idProduct=7a01.." but usb_modeswitch say "No devices in default mode found.." and the modem is not modeswitched. The command lsusb gives "unable to initialize libusb: -99".
A question would be: is there any possibility to modeswitch a usb modem (a standard distro like ubuntu-kernel see a CD-ROM.. and usb_modeswitch works) which is not recognized as CDROM by the kernel? My current feeling is that I have to build a kernel which must recognize CDROM.. before I can modeswitch it. The only problem, is that it will make my kernel bigger.
Any idea/proposal is welcome.
THANKS.

GlennsPref · 06-14-2013, 08:34 PM

Hi,

Not too sure how much bigger it would make the kernel, but some config files may be found to help...

Code:

locate usb_modeswitch | grep 0af0:7a01
/usr/share/usb_modeswitch/0af0:7a01

locate usb_modeswitch | grep '/etc/'
/etc/usb_modeswitch.conf

Hope this helps, Glenn

floppy_stuttgart · 06-16-2013, 07:22 AM

My current feeling is the kernel menuconfig was not the correct one. I am still searching what kernel setup will support that GPRS modem.

floppy_stuttgart · 06-19-2013, 06:25 AM

The last status is indicated below.
There are curious messages from the kernel and lsusb still dont work.
Any new idea what should be done is welcome.

...
[ 8159.390616] hub 1-0:1.0: state 7 ports 2 chg 0000 evt 0002
[ 8159.390720] ppc-of-ohci f0001000.usb: GetStatus roothub.portstatus [0] = 0x00010101 CSC PPS CCS
[ 8159.390825] hub 1-0:1.0: port 1, status 0101, change 0001, 12 Mb/s
[ 8159.494590] hub 1-0:1.0: debounce: port 1: total 100ms stable 100ms status 0x101
[ 8159.556603] ppc-of-ohci f0001000.usb: GetStatus roothub.portstatus [0] = 0x00100103 PRSC PPS PES CCS
[ 8159.607668] usb 1-1: new full-speed USB device number 3 using ppc-of-ohci
[ 8159.677683] ppc-of-ohci f0001000.usb: GetStatus roothub.portstatus [0] = 0x00100103 PRSC PPS PES CCS
[ 8159.749170] usb 1-1: default language 0x0409
[ 8159.755181] usb 1-1: udev 3, busnum 1, minor = 2
[ 8159.755233] usb 1-1: New USB device found, idVendor=0af0, idProduct=7a01
[ 8159.762348] usb 1-1: New USB device strings: Mfr=3, Product=2, SerialNumber=4
[ 8159.769830] usb 1-1: Product: Globetrotter HSUPA Modem
[ 8159.775261] usb 1-1: Manufacturer: Option N.V.
[ 8159.779977] usb 1-1: SerialNumber: Serial Number
[ 8159.786807] usb 1-1: usb_probe_device
[ 8159.786863] usb 1-1: configuration #1 chosen from 1 choice
[ 8159.791317] usb 1-1: adding 1-1:1.0 (config #1, interface 0)
[ 8159.793143] hso 1-1:1.0: usb_probe_interface
[ 8159.793220] hso 1-1:1.0: usb_probe_interface - got id
[ 8159.795153] hso 1-1:1.0: Not our interface
[ 8159.800523] usb-storage 1-1:1.0: usb_probe_interface
[ 8159.800801] usb-storage 1-1:1.0: usb_probe_interface - got id
[ 8159.802516] scsi1 : usb-storage 1-1:1.0
[ 8159.809931] hub 1-0:1.0: state 7 ports 2 chg 0000 evt 0002
[ 8160.818460] scsi 1:0:0:0: CD-ROM ZCOption HSUPA Modem PQ: 0 ANSI: 2
[ 8160.843042] ppc-of-ohci f0001000.usb: urb c7a679e0 path 1 ep1in 40120000 cc 4 --> status -32
[ 8160.853361] sr0: scsi-1 drive
[ 8160.860048] sr 1:0:0:0: Attached scsi CD-ROM sr0
[ 8160.863591] sr 1:0:0:0: Attached scsi generic sg0 type 5
[ 8160.871028] ppc-of-ohci f0001000.usb: urb c7a679e0 path 1 ep1in 40120000 cc 4 --> status -32

[root@rtux-v4 usbgsm]# export LIBUSB_DEBUG=3
[root@rtux-v4 usbgsm]# lsusb
libusb: 0.000000 error [op_init] could not find usbfs
unable to initialize libusb: -99

[root@rtux-v4 usbgsm]# usb_modeswitch -c /etc/switchicon.conf
Looking for target devices ...
No devices in target mode or class found
Looking for default devices ...
No devices in default mode found. Nothing to do. Bye.

floppy_stuttgart · 06-19-2013, 06:40 AM

Quote:

Originally Posted by GlennsPref

Hi,

Not too sure how much bigger it would make the kernel, but some config files may be found to help...

Code:

locate usb_modeswitch | grep 0af0:7a01
/usr/share/usb_modeswitch/0af0:7a01

locate usb_modeswitch | grep '/etc/'
/etc/usb_modeswitch.conf

Hope this helps, Glenn

I have conf files which are on /etc/; see previous post.

floppy_stuttgart · 01-18-2014, 11:48 AM

I had 2 issues:
a) a kernel without the modules recognition
b) a non working libusb (necessary for a working usb_modeswitch)
To
a) I made a new kernel with the required modules for recognizing the CDROM
b) I bought a HUAWEI E220 which dont need usb_modeswitch.
Topic closed.