[uClinux-dev] Newbie question about device driver under uClinux~

MadTop hls780204cn at vip.sina.com
Wed Aug 3 22:57:10 EDT 2005

Hi Shao :
     I don't think that user mode driver is possible . It isn't only MMU diff kernel mode and user mode . In the kernel mode you can use all space and kernel instruction . In the user mode with no MMU, you can access all space but you can not use kernel instruction . 

----- Original Message -----
From:Edward Shao <laface.tw at gmail.com>
To:uclinux-dev at uclinux.org
Subject:[uClinux-dev] Newbie question about device driver under uClinux~
Date:Wed, 6 Jul 2005 17:50:29 +0800
> Hi all, 
> I have a question about driver under uClinux.
> Is it possible to write a user mode driver under uClinux??
> I think it is possible, because uClinux is for MMU-less processor.
> If the I/O memory address is not be protected by processor, I can
> access if I want.
> Is it right ? I'm not sure. 
> Can some body give me a comment or direction ? :D
> Thank you in advanced.
> -- 
> Best Regards, 
> Edward
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