Allocating user space memory inside LKM

Dear all,

I'm working on a linux kernel 2.6.11 for h4 (OMAP 2420). I just want to get some memory of user space inside kernel module. As when I'm sending PCM data to audio driver from kernel module(KM) through audio_write (...) of driver API it gives error as:

Audio: CopyFrom User failed.

In the 2.6.11 kernel particularly for H4 target how to get some user space memory as for this target this alloc_user_space() function is not available.

Any light on this issue will be great help.

Best Regards
chandrasheakhar

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\    chandrashekhar singh
 \   [email protected]
 /   Faith Inc. Tokyo

/ www.faith.co.jp
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