* node /dev/ttyCPM2 not created
@ 2009-03-13 18:56 liran raz
2009-03-14 0:18 ` Timur Tabi
0 siblings, 1 reply; 5+ messages in thread
From: liran raz @ 2009-03-13 18:56 UTC (permalink / raw)
To: linuxppc-dev
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hi,
I've configured SCC1 to be serial uart driver.
(in addition to SMC1 & SMC2 that were already configured
as UARTs).
Now I can see these defines in .config file:
CONFIG_SERIAL_CPM_SCC1=y
CONFIG_SERIAL_CPM_SMC1=y
CONFIG_SERIAL_CPM_SMC2=y
When the kernal starts I see these log messages:
ttyCPM0 at MMIO 0xc505ca80 (irq = 17) is a CPM UART
ttyCPM1 at MMIO 0xc5060a90 (irq = 16) is a CPM UART
ttyCPM2 at MMIO 0xc5064a00 (irq = 40) is a CPM UART
But when I list the devices:
[root@urm dev]# ll ttyCPM*
crw-rw-rw- 1 root root 204, 46 Dec 31 17:00 ttyCPM0
crw-rw-rw- 1 root root 204, 47 Dec 31 17:00 ttyCPM1
I can't see ttyCPM2.
Does anyone know what I'm missing? or what do I need to configure
in order to have: /dev/ttyCPM2 ?
Thanks,
Liran.
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* Re: node /dev/ttyCPM2 not created
2009-03-13 18:56 node /dev/ttyCPM2 not created liran raz
@ 2009-03-14 0:18 ` Timur Tabi
2009-03-16 13:39 ` liran raz
0 siblings, 1 reply; 5+ messages in thread
From: Timur Tabi @ 2009-03-14 0:18 UTC (permalink / raw)
To: liran raz; +Cc: linuxppc-dev
On Fri, Mar 13, 2009 at 1:56 PM, liran raz <liranrazlinux@gmail.com> wrote:
> Does anyone know what I'm missing? or what do I need to configure
> in order to have: /dev/ttyCPM2 ?
My guess is that you don't have udev or mdev running.
--
Timur Tabi
Linux kernel developer at Freescale
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: node /dev/ttyCPM2 not created
2009-03-14 0:18 ` Timur Tabi
@ 2009-03-16 13:39 ` liran raz
2009-03-18 18:37 ` Scott Wood
0 siblings, 1 reply; 5+ messages in thread
From: liran raz @ 2009-03-16 13:39 UTC (permalink / raw)
To: Timur Tabi; +Cc: linuxppc-dev
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Thanks, I don't see any mdev process running.
Just wonder who is creating /dev/ttyCPM1 since in the device table file
(device_table.txt)
I have only node: 204 (major) 46 (minor) defined.
But I can see /dev/ttyCPM1 (204 47)
Liran.
On Fri, Mar 13, 2009 at 4:18 PM, Timur Tabi <timur@tabi.org> wrote:
> On Fri, Mar 13, 2009 at 1:56 PM, liran raz <liranrazlinux@gmail.com>
> wrote:
>
> > Does anyone know what I'm missing? or what do I need to configure
> > in order to have: /dev/ttyCPM2 ?
>
> My guess is that you don't have udev or mdev running.
>
>
> --
> Timur Tabi
> Linux kernel developer at Freescale
>
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: node /dev/ttyCPM2 not created
2009-03-16 13:39 ` liran raz
@ 2009-03-18 18:37 ` Scott Wood
0 siblings, 0 replies; 5+ messages in thread
From: Scott Wood @ 2009-03-18 18:37 UTC (permalink / raw)
To: liran raz; +Cc: linuxppc-dev, Timur Tabi
On Mon, Mar 16, 2009 at 05:39:08AM -0800, liran raz wrote:
> Thanks, I don't see any mdev process running.
Does it run during the boot scripts? Or do you have udev?
> Just wonder who is creating /dev/ttyCPM1 since in the device table file
> (device_table.txt)
> I have only node: 204 (major) 46 (minor) defined.
> But I can see /dev/ttyCPM1 (204 47)
Ideally, it would be a program such as udev or mdev. If you're using a
static /dev with no utility to automatically create nodes, then it's *you*
that creates it, with mknod. :-)
-Scott
^ permalink raw reply [flat|nested] 5+ messages in thread
* node /dev/ttyCPM2 not created
@ 2009-03-13 20:03 liran raz
0 siblings, 0 replies; 5+ messages in thread
From: liran raz @ 2009-03-13 20:03 UTC (permalink / raw)
To: linuxppc-dev
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hi,
I've configured SCC1 to be serial uart driver.
(in addition to SMC1 & SMC2 that were already configured
as UARTs).
Now I can see these defines in .config file:
CONFIG_SERIAL_CPM_SCC1=y
CONFIG_SERIAL_CPM_SMC1=y
CONFIG_SERIAL_CPM_SMC2=y
When the kernal starts I see these log messages:
ttyCPM0 at MMIO 0xc505ca80 (irq = 17) is a CPM UART
ttyCPM1 at MMIO 0xc5060a90 (irq = 16) is a CPM UART
ttyCPM2 at MMIO 0xc5064a00 (irq = 40) is a CPM UART
But when I list the devices:
[root@urm dev]# ll ttyCPM*
crw-rw-rw- 1 root root 204, 46 Dec 31 17:00 ttyCPM0
crw-rw-rw- 1 root root 204, 47 Dec 31 17:00 ttyCPM1
I can't see ttyCPM2.
Does anyone know what I'm missing? or what do I need to configure
in order to have: /dev/ttyCPM2 ?
Thanks,
Liran.
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^ permalink raw reply [flat|nested] 5+ messages in thread
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2009-03-13 18:56 node /dev/ttyCPM2 not created liran raz
2009-03-14 0:18 ` Timur Tabi
2009-03-16 13:39 ` liran raz
2009-03-18 18:37 ` Scott Wood
2009-03-13 20:03 liran raz
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