Messages in this thread | | | Date | Fri, 8 Aug 2008 21:38:25 -0700 | From | Greg KH <> | Subject | Re: Policy re. cellular USB modem mode switch |
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On Sat, Aug 09, 2008 at 04:45:30AM +0200, Oliver Martin wrote: > Hello, > > trying to get my ZTE MF628 HSDPA modem to work left me wondering if > there is an established policy whether or not to include the "mode > switch" code most cellular USB modems need in the kernel or not.
Questions like this have been hashed out numerous times already on the linux-usb mailing list.
> Currently, the MF628 requires a userspace helper called usb_modeswitch > to be called [1] to change from mass storage mode to serial mode. > After, that it can be used with the usbserial driver or preferably, > after one adds the right vendor and product id, with the option driver.
Never use the usbserial generic driver with a device you actually want to go fast :)
The option driver is better.
For switching modes, use the userspace program, it's not going to be done within the kernel. See the linux-usb archives for details.
thanks,
greg k-h
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