* [2.5.49] Serial registered twice
@ 2002-11-24 15:38 Kronos
2002-11-24 18:07 ` Russell King
0 siblings, 1 reply; 2+ messages in thread
From: Kronos @ 2002-11-24 15:38 UTC (permalink / raw)
To: linux-kernel
In my bootlog I see this:
Serial: 8250/16550 driver $Revision: 1.90 $ IRQ sharing enabled
tts/0 at I/O 0x3f8 (irq = 4) is a 16550A
tts/1 at I/O 0x2f8 (irq = 3) is a 16550A
pnp: the driver 'serial' has been registered
pnp: pnp: match found with the PnP device '00:0c' and the driver 'serial'
devfs_register(tts/0): could not append to parent, err: -17
tts/0 at I/O 0x3f8 (irq = 4) is a 16550A
pnp: pnp: match found with the PnP device '00:10' and the driver 'serial'
devfs_register(tts/1): could not append to parent, err: -17
tts/1 at I/O 0x2f8 (irq = 3) is a 16550A
>From my .config:
CONFIG_PNP=y
CONFIG_PNP_NAMES=y
CONFIG_PNP_DEBUG=y
CONFIG_PNPBIOS=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
CONFIG_SERIAL_CORE=y
CONFIG_DEVFS_FS=y
CONFIG_DEVFS_MOUNT=y
ciao,
Luca
--
Reply-To: kronos@kronoz.cjb.net
Home: http://kronoz.cjb.net
"La mia teoria scientifica preferita e` quella secondo la quale gli
anelli di Saturno sarebbero interamente composti dai bagagli andati
persi nei viaggi aerei." -- Mark Russel
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [2.5.49] Serial registered twice
2002-11-24 15:38 [2.5.49] Serial registered twice Kronos
@ 2002-11-24 18:07 ` Russell King
0 siblings, 0 replies; 2+ messages in thread
From: Russell King @ 2002-11-24 18:07 UTC (permalink / raw)
To: Kronos; +Cc: linux-kernel
On Sun, Nov 24, 2002 at 04:38:42PM +0100, Kronos wrote:
> In my bootlog I see this:
>
> Serial: 8250/16550 driver $Revision: 1.90 $ IRQ sharing enabled
> tts/0 at I/O 0x3f8 (irq = 4) is a 16550A
> tts/1 at I/O 0x2f8 (irq = 3) is a 16550A
> pnp: the driver 'serial' has been registered
> pnp: pnp: match found with the PnP device '00:0c' and the driver 'serial'
> devfs_register(tts/0): could not append to parent, err: -17
> tts/0 at I/O 0x3f8 (irq = 4) is a 16550A
> pnp: pnp: match found with the PnP device '00:10' and the driver 'serial'
> devfs_register(tts/1): could not append to parent, err: -17
> tts/1 at I/O 0x2f8 (irq = 3) is a 16550A
Indeed. Although it is harmless, it isn't what the average user
expects. I could tweak the serial layer to refuse to re-initialise
an already initalised port.
However, the devfs_regsiter problem is one that needs solving.
--
Russell King (rmk@arm.linux.org.uk) The developer of ARM Linux
http://www.arm.linux.org.uk/personal/aboutme.html
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2002-11-24 15:38 [2.5.49] Serial registered twice Kronos
2002-11-24 18:07 ` Russell King
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