Ubuntu Wiki

The following are notes on various bit of hardware that I have, or have used with Ubuntu.

IrDA

Last tried with Ubuntu 6.06 LTS, 11 Aug 2006.

USB to IrDA - Dongle 1

Labeled: fapus IrDA, Mode: UIR-100, 5Vdc 400mA

usb 1-2: new full speed USB device using ohci_hcd and address 4
SigmaTel STIr4200 IRDA/USB found at address 4, Vendor: 66f, Product: 4200
drivers/net/irda/stir4200.c: IrDA: Registered SigmaTel device irda0
usbcore: registered new driver stir4200

Works well over a wide range of angles and ranges.

USB to IrDA Dongle 2

Labeled: U2IrDAmini - 4MBPS FIR USB IRDA - 5V DC 90mA

usb 1-1: new low speed USB device using ohci_hcd and address 7

Unregistered device, detected by USB system as (lsusb)

Bus 001 Device 007: ID 07d0:4100 Dazzle

Is known to work under windows, but with a limited range (sweet spot, not too far not too close).

Epson VGA Controller

Correspondence with ERD Epson

From: Paul Schulz 
Sent: August 3, 2006 11:48 PM
To: erdvdctech_info@erd.epson.com
Subject: Linux Driver for S1D13706

Greetings,

I am looking at the Linux Driver for the S1D13706 Embedded Memory LCD
Controller and would like to know the following:

  1. What licence has the Linux Driver code been released under?
     The files themselves say 'All rights reserved.'

  2. How would you fix the following?
     I have tried to use the 2.6.8 patch against the 2.6.18-rc2. It
     almost applies cleanly, but the following (attached)
     hunks were rejected.

       drivers/video/Makefile.rej  - 4 Hunks
       drivers/video/fbmem.c.rej - 2 Hunks

  3. Will you be applying to have the drivers included in the main
     Linux kernel at some stage?

Thanks in advance,

Regards,
Paul Schulz <p.schulz@robway.com.au>
Software Engineer
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From: ---name withheld ---

Hello Paul,

1) As I was told many years ago, the wording "all rights reserved" is a
required part of the copyright notice in order to make the copyright binding
in all countries.

Our driver distribution is for use with Epson controllers only, which is why
we must ensure the copyright is worded to protect Epson.

The wording is not intended to restrict future licensing. If, at any time,
Epson decided to change their policy regarding software distribution the
source packages would include a description of what those limitations were.


2) My Linux expert is away today so I don't have a suggestion for the patch
fix. I will forward your request to him and get back to you as soon as we
have an answer. In all likelihood this will involve obtaining the 2.6.18
kernel and preparing a new patch.


3) Epson drivers have been included in the kernel distributions in the past.
As we have a wide range of controllers and we support a variety of operating
systems, pursuing kernel distribution for our drivers has never been a top
priority.

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