HAL and legacy serial ports, modems, ppp interfaces

[Paul Ionescu]

Hi David,

I think legacy ports are starting to appear in sysfs with aid of ACPI-PNP.
At least I have them with kernel 2.6.11-rc1 from FC3 experimental in
/sys/devices/pnp0.
They are added there by ACPI-PNP code in recent kernels. 
I have a lot of devices there (around 20 devices), see:

tree /sys/devices/pnp0/
/sys/devices/pnp0/
|-- 00:01
|   |-- detach_state
|   |-- id
|   |-- options
|   |-- power
|   |   `-- state
|   `-- resources
|-- 00:02
|   |-- detach_state
|   |-- id
|   |-- options
|   |-- power
|   |   `-- state
|   `-- resources
|-- 00:03
|   |-- detach_state
|   |-- id
|   |-- options
|   |-- power
|   |   `-- state
|   `-- resources
|-- 00:04
|   |-- detach_state
|   |-- id
|   |-- options
|   |-- power
|   |   `-- state
|   `-- resources
|-- 00:05
|   |-- detach_state
|   |-- id
|   |-- options
|   |-- power
|   |   `-- state
|   `-- resources
|-- 00:06
|   |-- detach_state
|   |-- id
|   |-- options
|   |-- power
|   |   `-- state
|   `-- resources
|-- 00:07
|   |-- detach_state
|   |-- id
|   |-- options
|   |-- power
|   |   `-- state
|   `-- resources
|-- 00:08
|   |-- detach_state
|   |-- id
|   |-- options
|   |-- power
|   |   `-- state
|   `-- resources
|-- 00:09
|   |-- detach_state
|   |-- id
|   |-- options
|   |-- power
|   |   `-- state
|   `-- resources
|-- 00:0a
|   |-- detach_state
|   |-- id
|   |-- options
|   |-- power
|   |   `-- state
|   `-- resources
|-- 00:0b
|   |-- detach_state
|   |-- id
|   |-- options
|   |-- power
|   |   `-- state
|   `-- resources
|-- 00:0c
|   |-- detach_state
|   |-- id
|   |-- options
|   |-- power
|   |   `-- state
|   `-- resources
|-- 00:0d
|   |-- detach_state
|   |-- id
|   |-- options
|   |-- power
|   |   `-- state
|   `-- resources
|-- 00:0e
|   |-- detach_state
|   |-- id
|   |-- options
|   |-- power
|   |   `-- state
|   `-- resources
|-- 00:11
|   |-- detach_state
|   |-- id
|   |-- options
|   |-- power
|   |   `-- state
|   `-- resources
|-- 00:12
|   |-- detach_state
|   |-- id
|   |-- options
|   |-- power
|   |   `-- state
|   `-- resources
|-- 00:13
|   |-- detach_state
|   |-- id
|   |-- options
|   |-- power
|   |   `-- state
|   `-- resources
|-- 00:14
|   |-- detach_state
|   |-- id
|   |-- options
|   |-- power
|   |   `-- state
|   `-- resources
|-- 00:16
|   |-- detach_state
|   |-- id
|   |-- options
|   |-- power
|   |   `-- state
|   `-- resources
|-- 00:19
|   |-- detach_state
|   |-- id
|   |-- options
|   |-- power
|   |   `-- state
|   `-- resources
|-- detach_state
`-- power
    `-- state

And to actually see what devices I have there:

 for i in * ; do cat $i/id ;done
PNP0c02
PNP0c01
PNP0200
PNP0000
PNP0100
PNP0b00
PNP0303
PNP0c04
PNP0800
PNP0a03
PNP0c02
INT0800
PNP0c02
PNP0c02
IBM0057
PNP0f13
PNP0501
IBM0071
PNP0511
PNP0700
PNP0400
PNP0e03
PNP0e00

On Wed, 19 Jan 2005 10:14:16 -0500, David Zeuthen wrote:
>> 
>> Do we have right now HAL support for
>> legacy serial ports
> 
> No, but we want that when the kernel exports this in sysfs.
> 


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