Date: Sat, 03 Dec 2011 11:03:35 +0000 From: "Poul-Henning Kamp" <phk@phk.freebsd.dk> To: Filippo Sironi <filippo.sironi@gmail.com> Cc: freebsd-hackers@freebsd.org Subject: Re: mmap implementation for cdev Message-ID: <11431.1322910215@critter.freebsd.dk> In-Reply-To: Your message of "Sat, 03 Dec 2011 11:37:01 %2B0100." <0011FD6A-E29D-4F67-913C-897BA1B2F56F@gmail.com>
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In message <0011FD6A-E29D-4F67-913C-897BA1B2F56F@gmail.com>, Filippo Sironi wri tes: >I need to access the memory both from user space and kernel space, I = >cannot do that (simply) with an mmap or thread-specific storage if I = >recall correctly. Have you looked how shm_open(2) and friends are implemented ? That might allow you to. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.
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