Date: Sat, 16 Nov 1996 17:54:22 +0100 (MET) From: J Wunsch <j@uriah.heep.sax.de> To: freebsd-hackers@freebsd.org (FreeBSD hackers) Cc: ts@polynet.lviv.ua (Slavik Terletsky) Subject: Re: Q: How to read hardware port ? *HELP* Message-ID: <199611161654.RAA05994@uriah.heep.sax.de> In-Reply-To: <328C9983.41C6@polynet.lviv.ua> from Slavik Terletsky at "Nov 15, 96 06:25:40 pm"
next in thread | previous in thread | raw e-mail | index | archive | help
As Slavik Terletsky wrote: > Say, if i am using port 0x443 and have no driver compiled for it - > can i read this port at all? (without driver!) Yes, by keeping a descriptor to the /dev/io security hole device open in your program. Hopefully, you must have EUID == 0 in order to do this. -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199611161654.RAA05994>