On Mon, 2016-05-16 at 02:43 +0000, YAMAMOTO Hiroyuki wrote:
> Hi USB serial experts,
>
> I am trying to support ZTE 403ZT modem by linux serial driver.
>
> Currently, option driver can not be used for the modem, because USB Class
> Code of the modem does not match.
> Linux driver has 0xff as USB Class Code for the modem but the device actually
> has 0x00.
>
> By default, option driver has this device ID with the following configuration:
> { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1282, 0xff, 0xff, 0xff) },
>
> I have changed the configuration as follows, and it works fine.
> { USB_DEVICE(ZTE_VENDOR_ID, 0x1282) },
>
> Is this a genuine bug? Or is there any other way to use the option driver for
> the modem?
This is a bug. But you should not change the existing entry. It would
break other devices. You need to add an entry matching your device.
Regards
Oliver
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