linux-kernel - Re: Getting make net/built-in.o Error with 2.6.21.1 Build

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Message-Id: <1178642912.8628.70.camel@aeonflux.holtmann.net>
Date:	Tue, 08 May 2007 18:48:32 +0200
From:	Marcel Holtmann <marcel@...tmann.org>
To:	Jiri Kosina <jikos@...os.cz>
Cc:	Satyam Sharma <satyam.sharma@...il.com>, chris@...urn.com,
	linux-kernel@...r.kernel.org, bluez-devel@...ts.sourceforge.net,
	netdev@...r.kernel.org
Subject: Re: Getting make net/built-in.o Error with 2.6.21.1 Build

Hi Jiri,

> > Sure, my aim here was to only solve the _build breakage_ by fixing the 
> > Kconfig for this module (that used code from another kernel module 
> > without listing it in its dependencies). If, as you say, the real 
> > solution is that we should actually be taking out the offending call to 
> > the other module itself, then please go ahead -- I don't know much about 
> > the Bluetooth / HIDP subsytem anyway.
> 
> Converting the hid-ff drivers to be also transport-independent is on my 
> TODO list, but it didn't happen yet.
> 
> Marcel - are you aware of any devices currently supported by USB HID 
> force-feedback code, which have a bluetooth version, please? 

I haven't looked at all details for the PS3 controller, but that might
be the first one. In theory they can and at some point they will enter
the market.

> I'd propose the patch below, until I make the usbhid force-feedback code 
> transport independent. Thanks.
> 
> 
> 
> From: Jiri Kosina <jkosina@...e.cz>
> 
> [Bluetooth] HIDP - don't initialize force feedback
> 
> The current implementation of force feedback for HID devices is 
> USB-transport only and therefore calling hid_ff_init() from hidp code is 
> not going to work (plus it creates unwanted dependency of hidp on usbhid). 
> Remove the hid_ff_init() until either the hid-ff is made 
> transport-independent, or at least support for bluetooth transport is 
> added.
> 
> Signed-off-by: Jiri Kosina <jkosina@...e.cz>

Signed-off-by: Marcel Holtmann <marcel@...tmann.org>

Under the condition that you remember to put it back once a generic FF
exists.

Regards

Marcel


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