linux-kernel - Re: 答复: [PATCH] USB: storage: fix Huawei mode switching regression

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Message-ID: <5138A00F.8060806@draisberghof.de>
Date:	Thu, 07 Mar 2013 15:11:27 +0100
From:	Josua Dietze <digidietze@...isberghof.de>
To:	Bjørn Mork <bjorn@...k.no>
CC:	"Fangxiaozhi (Franko)" <fangxiaozhi@...wei.com>,
	Dan Williams <dcbw@...hat.com>,
	Greg KH <gregkh@...uxfoundation.org>,
	"Linlei (Lei Lin)" <lei.lin@...wei.com>,
	"linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"Xueguiying (Zihan)" <zihan.xue@...wei.com>,
	"Yili (Neil)" <neil.yi@...wei.com>,
	Wangyuhua <yuhua.wang@...wei.com>,
	"Huqiao (C)" <huqiao36@...wei.com>, "balbi@...com" <balbi@...com>,
	"mdharm-usb@...-eyed-alien.net" <mdharm-usb@...-eyed-alien.net>,
	"sebastian@...akpoint.cc" <sebastian@...akpoint.cc>,
	stable <stable@...r.kernel.org>
Subject: Re: 答复: [PATCH] USB: storage: fix Huawei mode switching regression

Am 07.03.2013 13:19, schrieb Bjørn Mork:
> it looks like your app will need to be a member of the "usb" group to do
> this.  I assume there is a way for an app to request such permissions in
> Android.  Josh has obviously managed to get it.

Actually, the PPP Widget app requires access to a root shell because it is intended for user installation; however, for a system integrator it should not be hard to add a system app that handles USB devices.

Device discovery is provided by Android since 3.1, permitting device handling in place of an udev system.

A completely different question is if tablet manufacturers are keen on making their Wifi-only devices ready for 3G data via USB devices. It may conflict with their business interests if they are offering 3G-enabled devices for an extra charge.

They may come to the conclusion to patch out the 'huawei_init' feature altogether.

Josua Dietze

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