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From: Flavio Alberto Lopes Soares <flaviothunder@terra.com.br>
To: Linux Kernel Newbie <linux-newbie@vger.kernel.org>
Subject: using arrays from user space
Date: Fri, 08 Feb 2008 01:06:57 -0200	[thread overview]
Message-ID: <47ABC751.3090203@terra.com.br> (raw)

Hello all,
this is my very first message in this list, and I'm very, very newbie on 
linux kernel programming, I have a doubt, I need to modify a module to 
pass a great size array (about 600KB) in user space to kernel use-it, I 
think add more one IOCTL in his ioctl control of controled device 
passing the pointer as argument but I don't want to copy this array 
using copy_from_user() to kernel space because the size is too large, 
there's some way to convert the user-space array address to kernel-space 
address to use directly the original array ?


Thanks for all help

Flavio Alberto Lopes Soares
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                 reply	other threads:[~2008-02-08  3:06 UTC|newest]

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