Bob Chiodini said the following on 4/4/2005 5:37 AM:
On Sun, 2005-04-03 at 18:00 -0500, Bill McCormick wrote:
Sometime ago I upgraded to FC3 from RedHat 9 to, among other reasons,
get my VScom PCI 2 port serial card working.
(RedHat 9 required a kernel re-compile)
Anyway FC3 made it work. The two ports have been working for sometime on
/dev/ttyS4 & 5. Now, inexplicably (after a reboot test) the 2 ports
insist on using /dev/ttyS14 & 15.
I removed my rc.serial ...
<reference>
[root@billinux ~]# cat /tmp/rc.serial
setserial /dev/ttyS4 port 0xeca8 autoconfig
setserial /dev/ttyS5 port 0xec98 autoconfig
</reference>
... and still they come up as ttyS14 & 15.
Somehow, the kernel must be doing this. But how? ACPI? Where is the
config?
How might this have changed? yum?
Can I still use a rc.serial?
How can I get the ports permissions set to 666?
<reference from: dmesg>
ACPI: PCI interrupt 0000:00:04.0[A] -> GSI 25 (level, low) -> IRQ 177
ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
ttyS14 at I/O 0xeca8 (irq = 177) is a 16550A
ttyS15 at I/O 0xec98 (irq = 177) is a 16550A
ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
</reference>
Bill,
Once you figure out the devices names, the default permissions can be
set in /etc/udev/permissions.d/50-local.permissions. Add a line like:
ttyS*:root:uucp:0660
Change the 0660 as you need.
Bob...
I did't need to add the line: it was already there. Since this is a home
system, I care not if ALL ttyS* ports have a+rw.
