On Sat, 07 Jan 2006, Andreas Degert wrote: > - only ttyS0 and ttyS1 are detected by the driver > - ttyS4 - ttyS7 are set with setserial in a boot script (which works > for Debian kernel 2.6.12, but not Debian kernel 2.6.15) > > Some more search in the Internet revealed: > > If you look at the changes for drivers/serial/Kconfig between 2.6.12 > and 2.6.13 (e.g. > http://www.linuxhq.com/kernel/v2.6/13/drivers/serial/Kconfig) you'll > find the following part > ----------------------------------------------------------------- > config SERIAL_8250_NR_UARTS > - int "Maximum number of non-legacy 8250/16550 serial ports" > + int "Maximum number of 8250/16550 serial ports" > depends on SERIAL_8250 > default "4" > - ---help--- > - Set this to the number of non-legacy serial ports you want > - the driver to support. This includes any ports discovered > - via ACPI or PCI enumeration and any ports that may be added > - at run-time via hot-plug. > + help > + Set this to the number of serial ports you want the driver > + to support. This includes any ports discovered via ACPI or > + PCI enumeration and any ports that may be added at run-time > + via hot-plug, or any ISA multi-port serial cards. > ----------------------------------------------------------------- > > This means SERIAL_8250_NR_UARTS (slightly) changed its meaning, starting > with linux 2.6.13. To get the old behaviour, the number should be > increased by the number of legacy serial ports (which I think is 4 for > PC's, COM1 to COM4 in DOS-speak). > > I don't think it makes much sense to set > > config SERIAL_8250_MANY_PORTS > bool "Support more than 4 legacy serial ports" > > to "y" (which the Debian configuration does) and at the same time > set the maximum number of serial ports to 4.
i guess the majority of user would complain about the profileration of /dev/tty's on their udev boxes. there is a patch that went after 2.6.15 in the mainline kernel that allows a boot configuration of that paramater you could set it to eight, i'm inclined to put it in 2.6.15-3 we have already lots of changes for 2.6.15-2 so will take a week or so. > thanks for your fast response! thanks for your clear words. :) -- maks -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
