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Menabrea

Member

Registered: 2014-03-30

Posts: 16

Getac V100 (fully rugged with touchscreen and 3g)

Hello!
I've recently bought on ebay a used/refurbished Getac V100 of the first generation.
It has a Intel U2500 (which is old, but more than enought for a light arch+lxde installation).

I installed arch with some minor problems i could workaround, however i can't find any relevant information on configuring and installing the touchscreen and integrated 3g modem.

(The 3g modem worked out-of-the-box while booting from partedmagic, so it's supported).

Here is the output of lsusb

Bus 005 Device 005: ID 05e3:070e Genesys Logic, Inc. USB 2.0 Card Reader
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 002: ID 1199:6812 Sierra Wireless, Inc. MC8775 Device
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 003: ID 067b:aaa3 Prolific Technology, Inc. 
Bus 002 Device 002: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

So, Sierra Wireless, Inc. MC8775 Device in obviously the 3g modem. It is supported, but i can't find which package to install for it. Should show it up in "ip addr" even when the sim slot is empty?

Bus 002 Device 003: ID 067b:aaa3 Prolific Technology, Inc.  is the serial to usb adapter used to connect the touchscreen, so actually i don't even know its model (Getac released a windows xp driver only). Actually i don't know what to do to investigate further.

Menabrea

Member

Registered: 2014-03-30

Posts: 16

Re: Getac V100 (fully rugged with touchscreen and 3g)

I almost figured it out.

I discovered that all thre ttyUSB interfaces were part of the Sierra Wireless 3G Modem.

But the system detected also other four serial interfaces: ttyS0-4, i run

cu -l /dev/ttySn

on each of it and found out that ttyS2 was the only one responding and printing strange symbol and non printable characters on touch.

I tried some inputatach drivers without luck, so i grabbed the windows driver executable, used strings against it and parsing the result i finally got the exact model: PenMount 9000 (which is supported by input attached).

It works and doesn't need calibration, however both x and y axes are inverted (going to solve it after reading some documentation).