bvermeul is currently certified at Journeyer level.

Name: Bas Vermeulen
Member since: 2001-04-04 13:32:49
Last Login: 2012-02-14 22:50:11

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C, C++, Pascal programmer.

D&D addict (both player and DM)

Writing drivers for the No Wires Needed 802.11 pcmcia wireless cards.

Writing drivers for the 3Com 3CRWE62092A 11 Mbps Wireless LAN PC Cards.

Writing drivers for the Atmel AT76c503A USB to 802.11 Adapter.


Recent blog entries by bvermeul

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I passed the RHCE exam with a whopping 99.33% score. :)

  • Debug exam 100%
  • Multiple Choice 98%
  • Installation 100% I can live with those results... :)


    There may be a breakthrough in the permission part for the at76c503a chipset. We'll see what happens.

  • RHCE:

    I did a RH300 course and exam last week. It was easy enough, the troubleshooting part was a breeze (needed only 40 minutes for the 4 sessions, which included 3 re-installs for the various scenarios), the multiple-choice was easy enough, and I think I got the install part as well.

    I'll probably know within a couple of days if I passed. It was fun though, and the course at IBM was well given.


    Put my poldhu_cs sources in cvs on my laptop. I've been doing it all by hand (with a directory for each version). It's an improvement. :)


    Made suspend/resume work correctly with the card inserted. Basically, enable interrupts when needed, reset, and load the configuration again.

    I'm also working on 2.2 support. Shouldn't be too difficult, but I don't want to add #if's dependant on kernel releases. It can be done, since pcmcia-cs uses a good set of compatibility headers, and I think I've got a handle on the right define to check on...


    Rewrote the interrupt handling, send and receive procedures to be interrupt driven and state based. I've got it working now, with nice performance to boot. I'll be releasing a version 0.2.4 or maybe 0.3.0 version soon.


    I've just checked in a firmware upload utility for the at76c503a. It implements the USB Device Firmware Upgrade specification, with some extra proprietary stuff from Atmel. It works with an OHCI USB controller, but refuses to work on my newer laptop with an UHCI USB controller. I'm not sure WHY it fails, since a co-developer has it working on his laptop with an UHCI USB controller. The code is working (it works on the OHCI controller), but something in my UHCI controller or the linux usb driver or both isn't doing what it's supposed to.

    The code can be found in cvs (, password cvs, atmel-fw repository), and if anyone has got any idea what may be causing this, I'd love to hear someone else's opinion.

    10 older entries...


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