'epia' Tag

  • The shortcomings of the Linux LEDs API

    September 4, 2009

    In a recent post I mentioned that the Linux kernel has a dedicated API for LEDs. This API is composed of the drivers/leds/ directory and the additional <linux/leds.h> include file, Documentation exists in form of the Documentation/leds-class.txt file. To quote: “The underlying design philosophy is simplicity. LEDs are simple devices and the aim is to […]

  • OpenWrt Remote debugging

    August 26, 2009

    While analyzing hostapd and trying to find out where to hook in after WPA pairwise key exchange has completed, the need arose to get a gdb running on the target platform (the EPIA MII), so I could break in the function and obtain a backtrace.

  • Adding four custom status LEDs to the EPIA MII

    August 19, 2009

    In the course of my little EPIA MII project, I have to interface four custom LEDs which I connected to the MII’s internal parallel port connector. The LEDs are tri-state LEDs, that is, they can not be just turned on or off but can show three different colors, hence the name tri-state LEDs. The particular […]

  • What’s the EPIA MII supposed to do?

    August 9, 2009

    Due to its connectivity options (Ethernet onboard, WLAN addable via PCI card, CardBus slot or USB for UMTS adapter, possibly even a CompactFlash adapter) the EPIA MII suggests itself, of course, as a router device and that’s what it was originally intended for. However, now in the first place it’ll have a slightly different assignment.

  • My EPIA MII-based system

    August 5, 2009

    I recently mentioned my EPIA MII-based system. The EPIA MII is a highly integrated mainboard from Via’s Embedded division that comes in the itsy-tiny Mini-ITX form factor. I originally bought it way back together with a Casetronic Travla C158 case to be the base for an OpenWrt-based UMTS router. However I never got around it […]

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