From: Ruud Linders <rkmp@xs4all.nl>
To: "Paul Rolland" <rol@as2917.net>, linux-kernel@vger.kernel.org
Subject: Re: Serial port numbering (ttyS..) wrong for 2.5.61+
Date: Mon, 02 Jun 2003 18:21:15 +0200 [thread overview]
Message-ID: <3EDB797B.1050206@xs4all.nl> (raw)
>>Hello,
>
>> Since I tried the 2.5 kernel versions somewhere in the 2.5.6x range, I
>> see rather odd port naming for the extra 4 serial ports on a PCI-card.
>Which driver are you using ?
See attached CONFIG_SERIAL* from my config, this is the 'standard'
serial port driver.
>
>> The first two are numered as ttyS14, ttyS15 while the last two are
>> ttyS2 and ttyS3 !
>> I tried to find where these numbers are coming from but
>> couldn't really
>> find an obvious place in the various drivers/char/* or
>> drivers/serial/*
>> files.
>
>Numbering seems to be coming out of
>drivers/serial/core.c : uart_find_match_or_unused
>which is responsible for finding an unused state for the port.
>
>However, the code there seems to be clean and I guess we should look
>where the state are initialized.
>
>Paul
==============================================================
# CONFIG_SERIAL_NONSTANDARD is not set
#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
CONFIG_SERIAL_8250_MULTIPORT=y
# CONFIG_SERIAL_8250_RSA is not set
#
# Non-8250 serial port support
#
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
next reply other threads:[~2003-06-02 16:07 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-06-02 16:21 Ruud Linders [this message]
-- strict thread matches above, loose matches on Subject: below --
2003-06-01 11:14 Serial port numbering (ttyS..) wrong for 2.5.61+ Ruud Linders
2003-06-01 12:48 ` Paul Rolland
2003-06-02 17:51 ` Russell King
2003-06-02 18:43 ` Paul Rolland
2003-06-03 16:58 ` Ruud Linders
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