linux-kernel - Re: SDIO: IO-Ready Bit

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

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 18 Mar 2008 19:20:18 +0100
From:	Pierre Ossman <drzeus@...eus.cx>
To:	"Tomas Winkler" <tomasw@...il.com>
Cc:	lkml <linux-kernel@...r.kernel.org>, benzizbit@...il.com
Subject: Re: SDIO: IO-Ready Bit

On Tue, 18 Mar 2008 19:43:40 +0200
"Tomas Winkler" <tomasw@...il.com> wrote:

> On Tue, Mar 18, 2008 at 1:33 PM, Pierre Ossman <drzeus@...eus.cx> wrote:
> >
> >  A better approach is to simply have the drivers for your subfunctions synchronize things. Make sure noone calls sdio_enable_func() until the firmware has been loaded.
> 
> This could even be done from user space in case you want to use a
> standard driver.
> 
> Won't this prevent us from compiling the drivers into kernel?
> Second how this possible especially with standard driver as they are
> loaded. I know you can enforce module loading but how can you enforce
> probing order form user space?

You can tell the kernel to not automatically attach drivers to devices.
That way you can have a user space process control exactly the order
and timing of things. I haven't played around with this feature myself
though, so I can't really provide you with any good information on how
to use it. You should be able to google up something useful.

Rgds
Pierre

Download attachment "signature.asc" of type "application/pgp-signature" (198 bytes)