Friday, 31 December 2010

Interesting facts about USB, number 2312 in an occasional series.

Ah, USB 2.0. How I don't love thee in any way at all.

I've recently been hacking the USB drivers on an SoC we have here. The initial problem was that a USB mouse connected via a high-speed hub was acting erratically.

[Update: for what it's worth, it turns out that none of the below actually works. But I do now have some nice clean traces showing a high-speed USB hub apparently blatantly failing to report transaction results back to the host. Hey ho. Work continues.. ]

Thursday, 16 December 2010

Muddle version 2.2 now available

I have just merged my "new_vcs" branch of muddle into trunk. This is tagged as "2_2", and thus is muddle version 2.2. Changes include: