Date: Mon, 3 Nov 1997 17:18:41 -0200 (EDT) From: Joao Carlos Mendes Luis <jonny@coppe.ufrj.br> To: luigi@labinfo.iet.unipi.it (Luigi Rizzo) Cc: multimedia@FreeBSD.ORG Subject: Re: A small addition to the bt848 driver... Message-ID: <199711031918.RAA07551@gaia.coppe.ufrj.br> In-Reply-To: <199711030511.GAA17013@labinfo.iet.unipi.it> from Luigi Rizzo at "Nov 3, 97 06:11:06 am"
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#define quoting(Luigi Rizzo)
// if (write) {
// i2cWrite( bktr, i2c_addr, i2c_port, data);
// } else {
// data = i2cRead( bktr, i2c_addr);
// }
Is there something harm that a mortal user could do using direct
access to i2c bus ? If so, consider checking for root privs.
This seems to much of low level access to allow to everybody.
chmod'ing the device may not be an option. I would not want
every bt848 program to be suid either. And depending on the
power of i2c (think hardware debug), fbtab is not an option
also.
Jonny
--
Joao Carlos Mendes Luis jonny@gta.ufrj.br
+55 21 290-4698 jonny@coppe.ufrj.br
Universidade Federal do Rio de Janeiro UFRJ/COPPE/CISI
PGP fingerprint: 29 C0 50 B9 B6 3E 58 F2 83 5F E3 26 BF 0F EA 67
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