[Bug 22351] New: Kernel config: not enough serial port UARTs allowed to use pcmcia

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Thu Jan 12 22:20:44 UTC 2006

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           Summary: Kernel config: not enough serial port UARTs allowed to
                    use pcmcia
           Product: Ubuntu
           Version: unspecified
          Platform: All
        OS/Version: other
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: linux
        AssignedTo: ben.collins at ubuntu.com
        ReportedBy: hile at nixu.com
         QAContact: kernel-bugs at lists.ubuntu.com

Using pcmciautils and 2.6.15 kernel, pcmcia serial ports are numbered as
standard serial ports by kernel. This prevents me from using both gprs card
(shown as 2 serial ports) and smartcard reader simultaneously on my laptop,
which already has internally 1 serial + 1 irda port, leaving only 2 ports to use
(and my gprs card uses always 2 ports, meaning smartcard reader can't be  used).

Earlier, with pcmcia-cs, these ports were not counted to the configured maximum
serial port count, this is why it's a new problem.

Setting CONFIG_SERIAL_8250_NR_UARTS in kernel to 8 solves this problem (tested
with custom built kernel). I understand this is not common problem, but I don't
see a problem with setting it to 8 by default either, and thus I wish that the
default kernel package has this option set to 8 by default.

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