Date: Wed, 5 May 1999 14:01:44 +0500 (GMT) From: CyberPsychotic <fygrave@tigerteam.net> To: Doug Rabson <dfr@nlsystems.com> Cc: freebsd-hackers@freebsd.org, tech@openbsd.org Subject: Re: io ports reading/writing Message-ID: <Pine.GSO.4.05.9905051359030.632-100000@kyrnet.kg> In-Reply-To: <Pine.BSF.4.05.9905051001000.411-100000@herring.nlsystems.com>
next in thread | previous in thread | raw e-mail | index | archive | help
~ ~ The access control for io ports is controlled by the file-system ~ permissions on /dev/io. In a standard setup, only root can access this ~ device. ~ yes. But I was refering to linux scheme, where you can set the port-range, so the code wouldn't make any unintentional damage. (like if you're working with cmos you could only permit 0x70/0x71 ports, so even if code goes nuts, your disks will be safe). This is basically programmer's problem of course, but the feature is very handy. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?Pine.GSO.4.05.9905051359030.632-100000>