Stuart Henderson <s...@spacehopper.org> wrote: > On 2020-08-17, Doug Moss <dougmoss...@yahoo.com> wrote: > > > > Is it possible with OpenBSD i386 to use the parallel port for lcdproc? > > > > More specifically: > > Did something change at OpenBSD i386 between 5.9 and 6.0 > > related to parallel port / lpt hardware permissions? > > > > Up to OpenBSD i386 5.9, > > I used to be able to have a working case-LCD-screen > > with lcdproc-0.5.7, driver=hd44780, winamp wiring, with 'allowaperture'. > > At OpenBSD i386 6.0 and after, it fails. > > I think this is due to kernel memory access restrictions that were added. > Setting sysctl kern.allowkmem=1 before securelevel is raised bypasses them > but of course weakens protections.
Oh good god, it's not lpt access, but direct hardware access? I think we should not be encouraging people to use kern.allowkmem for anything like this.
