| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Thu, 12 Aug 2010 02:14:54 +0200 From: "Hans J. Koch" <hjk@...utronix.de> To: Leon Woestenberg <leon.woestenberg@...il.com> Cc: "Hans J. Koch" <hjk@...utronix.de>, Tom Lyon <pugs@...co.com>, mst@...hat.com, gregkh@...e.de, chrisw@...s-sol.org, joro@...tes.org, avi@...hat.com, linux-kernel@...r.kernel.org Subject: Re: UIO DMA to userspace question On Wed, Aug 11, 2010 at 08:42:35PM +0200, Leon Woestenberg wrote: [...] > > I am currently refraining from using UIO, as I don't like the head > ache feature :-) Well, if you need feature X, capability Y, or usecase Z, feel free to send patches. I (and several of my colleagues) wrote quite a lot of UIO drivers for various chips in the last 4 years. I never had a device that needed DMA on my desk yet, otherwise support for it would be in mainline now. UIO was mainly invented to prevent people from writing large character device drivers that will never make it to mainline, and then having to maintain them off-tree. It is not a general purpose driver interface but a small framework to handle a special class of hardware that doesn't fit into any other subsystem. If you've got such hardware, and you need a certain feature, think about how it can be done, and let us know. Thanks, Hans > > Regards, > -- > Leon -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists