On Tue, Jan 08, 2008 at 02:50:41PM -0600, Lukasz Szybalski wrote: > > Currently we have 1 serial port on motherboard and 2 port pci card. I > would like to add another 4 port pci card. I am not able to do it > because I get a conflict on ttyS. > > Since regular pc pci limit is on average 3. the max serial ports I could > install is 3x(6port serial card) + 1 on mother board. So Max I could > fit on is 19 if I wanted to. Realistically it would be optimal for me to > have at least 7 available. > > Is there some kind of setting that can be changed without recompiling > the kernel to allow this many serial ports or some kernel header that > would increase the number of available serial ports without much problem?
$ egrep NR_UARTS /boot/config-2.6.24-rc7-amd64 CONFIG_SERIAL_8250_NR_UARTS=16 $ egrep RUNTIME_UARTS /boot/config-2.6.24-rc7-amd64 CONFIG_SERIAL_8250_RUNTIME_UARTS=4 This can be overridden with the module parameter "nr_uarts", or boot-time parameter 8250.nr_uarts. up to 16 evidently -- maks -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
