Re: unusual_devs.h entry for huawei e220 usb-umts device

This seems to be a really nice way...

For my device disabling the cd-drive works very well.. but i got some  
response from a guy that he only gets one tty-device.. maybe this can  
fix this problem...

it also seems the content of the cd-image is not the same on all  
devices.. my (branded) device does not contain any manual, numbers,  
oder something else... only a strange proprietary tool to dial in....

so if i understand right the patch to unusual_devs.h is removed and  
the one to the option-driver remains... seems to be a good solution..  
will test it next week...

73



Zitat von Rui Santos <[email protected]>:

>       Hi All,
>
>     IMHO, this patch should be removed... I'll explain the reasons:
>
>     1. Disabling the Virtual CD on that device does not assure that
> the device turns the Serial Ports on, witch I believe was the primary
> intention for this patch in the first place. One could get even better
> results with usb_storage.delay_use=0 but, even with this option set,
> it also doesn't work every time.
>
>     2. The Virtual CD doesn't contain only the Windows Drivers. It
> also contains:
>         - The manual
>         - A file named 'SysConfig.dat' that contains, among other
> things, the number to dial to, the username and the password.
>         - AT Commands used to set up the device accordingly to the
> ISP, witch varies among ISP's. These can be found on the .inf windows
> driver files.
>
>     3. The correct way to switch this device from one USB-CD to two
> ttyUSB's and one USB-CD, IMO, is to use the utility available at:
> http://www.kanoistika.sk/bobovsky/archiv/umts/
>
>     If the patch is removed, you could use the device's natural
> operation, ending up having two Serial Devices and one USB-CD. The
> only thing needed is a line on udev that could resemble something
> like: BUS="usb", SYSFS{idVendor}="12d1", SYSFS{idProduct}="1003",
> SYSFS{bNumInterfaces}=" 1",
> RUN+="/usr/local/bin/huaweiAktBbo-i386.out "
>     With this process it always worked with all my tests, and I was
> able maintain the USB-CD available.
>
>     The ID's on the option driver should be maintained to correctly
> detect the two Serial Devices.
>
>     I also attach a patch against kernel 2.6.21-rc3-git7
>
> Does anyone cares to comment on this? Do you agree ? Or not ?
>
> Thanks for your time,
> Rui Santos
>
> Johann Wilhelm wrote:
>
>   on my slackware11 the huawei e220 device is detected as mass
> storage device.. i found a way to prevent the kernel from this by
> adding it to the unusual_devs.hthe diff to 2.6.18.1:1274,1284d1273 <
> /* This prevents the kernel from detecting the Huawei-E220
> USB-UMTS-Modem as mass storage device. <    The storage-device is
> nothing else than a virtual cd-drive with the windows drivers. <
> modprobe usbserial usbserial vendor=0x12d1 product=0x1003 will
> bringup the modem-device <    <johann.wilhelm(at)student.tugraz.at> <
> */ < UNUSUAL_DEV( 0x12d1, 0x1003, 0x0000, 0xffff, <
> "HUAWEI", <               "E220 USB-UMTS Install", <
> US_SC_DEVICE, US_PR_DEVICE, NULL, <
> US_FL_IGNORE_DEVICE), <interesting part of cat
> /proc/bus/usb/devices:T:  Bus=03 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#=
> 5 Spd=12  MxCh= 0 D:  Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64
> #Cfgs=  1 P:  Vendor=12d1 ProdID=1003 Rev= 0.00 S:
> Manufacturer=HUAWEI Technologies S:  Product=HUAWEI Mobile C:* #Ifs=
> 1 Cfg#= 1 Atr=a0 MxPwr=500mA I:  If#= 0 Alt= 0 #EPs= 2 Cls=08(stor.)
> Sub=06 Prot=50 Driver=usbserial E:  Ad=83(I) Atr=02(Bulk) MxPS=  64
> Ivl=0ms E:  Ad=04(O) Atr=02(Bulk) MxPS=  64 Ivl=0msi'm not deep
> enought into hotplug :( but because i use this device in a router
> coldplugging is ok for me.... followind in my rc.modules should do:#
> Huawei E220 support /sbin/modprobe usbserial vendor=0x12d1
> product=0x1003 /usr/bin/mknod /dev/ttyUSB0 c 188 0 /usr/bin/mknod
> /dev/ttyUSB1 c 188 1 /usr/bin/mknod /dev/ttyUSB2 c 188 2 /usr/bin/ln
> -sf /dev/ttyUSB0 /dev/modemthis should work (at least a my machine)
> on slackware 11 with kernel 2.6.18.173 de oe6jwf /
> Hans-------------------------------------------------------------------------
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> Dep. Testes
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