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Re: usb hsdpa modem only detected after using it on windows

i could not find any option.c or unusual_devs.h on my machine, what
sould i do next?

2009/8/16, Raja R Harinath <harinath@hurrynot.org>:
> Hi,
> Umarzuki Mochlis <umarzuki@gmail.com> writes:
>> the modem is Huawei E1762 which is provided by local ISP when registering
>> for their wireless broadband service.
>> this modem, weirdly, can only be detected when i used it recently from
>> windows xp, while the device still connected into the usb port, reboot
>> into debian, then it will be
>> detected and can be used with Vodafone Mobile Connect Card driver for
>> Linux
>> detected as usb storage
>> Bus 005 Device 003: ID 12d1:1446 Huawei Technologies Co., Ltd.
>> detected as modem
>> Bus 005 Device 003: ID 12d1:1003 Huawei Technologies Co., Ltd. E220 HSDPA
>> Modem / E270 HSDPA/HSUPA Modem
> This looks like an USB device that carries its Windows drivers on it.
> When you first plug it in, it appears as a USB storage device with the
> driver in it.  After the Windows driver is installed, it pokes the
> device to make the modem interface appear.
> Now, on Linux, the modem interface, 0x1003, is supported by the option.c
> driver.  So, the trick is to add a quirk to the USB storage driver to
> handle the poking.  It appears there already are similar devices, and
> there already is code in the kernel to handle the poking of the device,
> etc.
> You'll probably need to patch the drivers/usb/storage/unusual_devs.h
> file in the kernel to add a para that looks like:
>   UNUSUAL_DEV(  0x12d1, 0x1446, 0x0000, 0x0000,
>                 "HUAWEI MOBILE",
>                 "Mass Storage",
>                 US_SC_DEVICE, US_PR_DEVICE, usb_stor_huawei_e220_init,
>                 0),
> and recompile.  Unfortunately, the usbstorage 'quirk=...' option doesn't
> appear to be able to handle this kind of quirk.
> - Hari
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Umarzuki Mochlis

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