From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jon Smirl Subject: Re: [RFC] What are the goals for the architecture of an in-kernel IR system? Date: Sat, 28 Nov 2009 14:32:46 -0500 Message-ID: <9e4733910911281132m5d0cce31t5544c5a6361813bd@mail.gmail.com> References: <9e4733910911270757j648e39ecl7487b7e6c43db828@mail.gmail.com> <1259370501.11155.14.camel@maxim-laptop> <1259419368.18747.0.camel@maxim-laptop> <1259422559.18747.6.camel@maxim-laptop> <9e4733910911280845y5cf06836l1640e9fc8b1740cf@mail.gmail.com> <1259433959.3658.0.camel@maxim-laptop> <9e4733910911281056s77e9bc8frd9200a81ebab8d7e@mail.gmail.com> <4B117A4C.1070304@s5r6.in-berlin.de> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <4B117A4C.1070304@s5r6.in-berlin.de> Sender: linux-media-owner@vger.kernel.org To: Stefan Richter Cc: Maxim Levitsky , Krzysztof Halasa , Christoph Bartelmus , jarod@wilsonet.com, awalls@radix.net, dmitry.torokhov@gmail.com, j@jannau.net, jarod@redhat.com, linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@redhat.com, superm1@ubuntu.com List-Id: linux-input@vger.kernel.org On Sat, Nov 28, 2009 at 2:30 PM, Stefan Richter wrote: > Jon Smirl wrote: >> If these drivers are for specific USB devices it is straight forward >> to turn them into kernel based drivers. If we are going for plug and >> play this needs to happen. All USB device drivers can be implemented >> in user space, but that doesn't mean you want to do that. Putting >> device drivers in the kernel subjects them to code inspection, they >> get shipped everywhere, they autoload when the device is inserted, >> they participate in suspend/resume, etc. > > Huh? =A0Userspace implementations /can/ be code-reviewed (but they ca= n't > crash your machine), they /can/ be and are shipped everywhere, they /= do/ > auto-load when the device is inserted. =A0And if there should be an i= ssue > with power management (is there any?), then improve the ABI and libus= b > can surely be improved. =A0I don't see why a device with a userspace > driver cannot be included in power management. If you want a micro-kernel there are plenty to pick from. Linux has chosen not to be a micro-kernel. The Linux model is device drivers in the kernel. --=20 Jon Smirl jonsmirl@gmail.com