linux-kernel - Re: [PATCH] Add support for Mobilcom Debitel USB UMTS Surf-Stick to option driver

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Date:	Fri, 27 Nov 2009 10:53:29 -0800
From:	Greg KH <greg@...ah.com>
To:	Gernot Hillier <gernot@...lier.de>
Cc:	Matthias Urlichs <matthias@...ichs.de>,
	Oliver Neukum <oliver@...kum.org>, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Add support for Mobilcom Debitel USB UMTS Surf-Stick
	to option driver

On Fri, Nov 27, 2009 at 07:11:05PM +0100, Gernot Hillier wrote:
> Hi!
>
> Matthias Urlichs schrieb:
>> On Fri, 2009-11-27 at 13:49 +0100, Gernot Hillier wrote:
>>> +       /* 4G Systems W14 simply ignores this message on interface 0 & 1 
>>> +          and would cause long timeouts when calling usb_control_msg()  
>>> */
>>> +       if (serial->dev->descriptor.idVendor == FOUR_G_SYSTEMS_VENDOR_ID &&
>>> +               serial->dev->descriptor.idProduct == FOUR_G_SYSTEMS_PRODUCT_W14 &&
>>> +               (ifNum == 0 || ifNum == 1) )
>>> +               return -EIO;
>>>
>> I'd appreciate if you'd implement this generically.
>>
>> I.e., use the driver_info field of struct usb_device for an appropriate
>> blacklist flag. (It's not going to be the only one.)
>
> Sure. I'll have a look into that ASAP.
>
> Could you do me a favor and apply the first two hunks (i.e. add the 
> vendor/device id) in the meantime?
>
> This makes the driver functional in general. And - ehrm, would save me some 
> time, because these hunks have to be rebased frequently. ;-)
>
> The 3rd hunk (we're talking about) is just an "optimization" to make 
> impatient userspace applications happy...

Yes, I'll queue that up to make it easier for you to add the later
options.

thanks,

greg k-h
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