Date: Fri, 23 Jan 2004 12:50:23 -0500 (EST) From: Anand Subramanian <anand@pythagoras.math.uwaterloo.ca> To: freebsd-hackers@freebsd.org Subject: Pseudo device question Message-ID: <Pine.GSO.4.58.0401231247270.14232@pythagoras.math.uwaterloo.ca> In-Reply-To: <20040122200041.EE18416A4D0@hub.freebsd.org> References: <20040122200041.EE18416A4D0@hub.freebsd.org>
next in thread | previous in thread | raw e-mail | index | archive | help
Hi All, If I have a pseudo-device on FreeBSD 5.1 created using the make_dev call does anyone know how to grow this special file? I mean I don't want to write to this file initially but grow this device memory to a somewhat large limit. This is because I need to mmap this pseudo device into a user process memory and then use the mmaped memory...Can I do this by defining an ioctl() on this special file? If so what do I have to do to allocate some memory and to attach the allocated memory to this device? Thanks, Anand
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?Pine.GSO.4.58.0401231247270.14232>