Hi,

I've installed slackware 10.2 on my notebook, but I've some problems
with the touchpad.
The problem is that udev doesn't create the /dev/input/event* and
/dev/input/mouse* entries for my touchpad. I've enabled in the kernel
all the options required and the kernel finds the touchpad.

root@laptop:~# cat /proc/bus/input/devices

I: Bus=0011 Vendor=0001 Product=0001 Version=ab41
N: Name="AT Translated Set 2 keyboard"
P: Phys=isa0060/serio0/input0
S: Sysfs=/class/input/input0
H: Handlers=kbd event0
B: EV=120013
B: KEY=4 2000000 3802078 f840d001 f2ffffdf ffefffff ffffffff fffffffe
B: MSC=10
B: LED=7

I: Bus=0011 Vendor=0002 Product=0007 Version=0000
N: Name="SynPS/2 Synaptics TouchPad"
P: Phys=isa0060/serio1/input0
S: Sysfs=/class/input/input1
H: Handlers=mouse0 event1
B: EV=b
B: KEY=6420 0 7000f 0 0 0 0 0 0 0 0
B: ABS=11000003


root@laptop:~# udevinfo -a -p /sys/class/input/input1/

looking at class device '/sys/class/input/input1':
SUBSYSTEM=="input"
SYSFS{name}=="SynPS/2 Synaptics TouchPad"
SYSFS{phys}=="isa0060/serio1/input0"
SYSFS{uniq}==""

follow the "device"-link to the physical device:
looking at the device chain at '/sys/devices/platform/i8042/serio0':
BUS=="serio"
ID=="serio0"
DRIVER=="psmouse"
SYSFS{bind_mode}=="auto"
SYSFS{description}=="i8042 Aux Port"
SYSFS{modalias}=="serio:ty01pr00id00ex00"
SYSFS{protocol}=="SynPS/2"
SYSFS{rate}=="80"
SYSFS{resetafter}=="0"
SYSFS{resolution}=="200"

looking at the device chain at '/sys/devices/platform/i8042':
BUS=="platform"
ID=="i8042"
DRIVER=="i8042"

looking at the device chain at '/sys/devices/platform':
BUS==""
ID=="platform"
DRIVER=="unknown"

If I attach an usb mouse the entries discussed above are correctly
created for this device.
Is there anyone who can help me?

PS: I'm sorry for my terrible english

Thanks, Alberto

Alberto <virtual_alby@tin.it> wrote:
> I've installed slackware 10.2 on my notebook, but I've some problems
> with the touchpad.
> The problem is that udev doesn't create the /dev/input/event* and
> /dev/input/mouse* entries for my touchpad.

I haven't really played with any newer laptop, but all laptops with
touchpad that I have seen has had the touchpad behaving as a PS/2-mouse.
Did you try to compile a kernel or module with PS/2 mouse support? With
such a kernel it might work with /dev/psaux.

regards Henrik
--
The address in the header is only to prevent spam. My real address is:
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Henrik Carlqvist ha scritto:

> Did you try to compile a kernel or module with PS/2 mouse support? With
> such a kernel it might work with /dev/psaux.
>
> regards Henrik

Hi,
yes the touchpad works using /dev/mice (/dev/psaux is only a symlink)
but synaptics driver needs the event* (for example event1) interface for
working properly. If I create this device with mknod I have no problems
and the touchpad works fine.
But why doesn't udev do it for me during the boot? With dmesg I can see
that the kernel correctly recognizes my touchpad during the boot but
udev doesn't create any device under /dev/input ...

Thanks, Alberto

Alberto <virtual_alby@tin.it> wrote:
> yes the touchpad works using /dev/mice (/dev/psaux is only a symlink)

What have you done to your Slackware 10.2 installation? From your
descriptions it seems as if you have done some modifications. By default
/dev/psaux is a character device with major number 10 and minor number 1
in Slackware 10.2. This is the character device used to talk to a PS/2
mouse.

> but synaptics driver needs the event* (for example event1) interface for
> working properly. If I create this device with mknod I have no problems
> and the touchpad works fine.
> But why doesn't udev do it for me during the boot? With dmesg I can see
> that the kernel correctly recognizes my touchpad during the boot but
> udev doesn't create any device under /dev/input ...

If I understand things right I think that the devices in /dev/input are
only used for things connected to USB. There is some information about
/dev/input in /usr/src/linux/Documentation/input/input.txt

regards Henrik
--
The address in the header is only to prevent spam. My real address is:
hc8(at)uthyres.com Examples of addresses which go to spammers:
root@variousus.net root@localhost

Alberto <virtual_alby@tin.it> wrote:
> Henrik Carlqvist ha scritto:
>
>> Did you try to compile a kernel or module with PS/2 mouse support? With
>> such a kernel it might work with /dev/psaux.
>>
>> regards Henrik
>
> Hi,
> yes the touchpad works using /dev/mice (/dev/psaux is only a symlink)
> but synaptics driver needs the event* (for example event1) interface for
> working properly. If I create this device with mknod I have no problems
> and the touchpad works fine.
> But why doesn't udev do it for me during the boot? With dmesg I can see
> that the kernel correctly recognizes my touchpad during the boot but
> udev doesn't create any device under /dev/input ...
>
> Thanks, Alberto

To get the TP on my notebook to work I modprobe evdev in rc.4. For
some reason the module is not getting loaded automatically. There's
probably some "magic" I could put in modprobe.conf, but since the
modprobe works...

Jerry