Linked by Thom Holwerda on Fri 23rd Aug 2013 08:37 UTC

Pretty much for my entire career in Linux USB (eight years now?), we've been complaining about how USB device power management just sucks. We enable auto-suspend for a USB device driver, and find dozens of different USB devices that simply disconnect from the bus when auto-suspend is enabled.

For years, we've blamed those devices for being cheap, crappy, and broken. We talked about blacklists in the kernel, and ripped those out when they got too big. We've talked about whitelists in userspace, but not many distros have time to cultivate such lists.

It turns out it's not always the device's fault.

Fascinating bug.

Permalink for comment 570404
To read all comments associated with this story, please click here.
Just being a snarky Windows Developer
by avgalen on Fri 23rd Aug 2013 11:21 UTC
Member since:

So in an open spec and an open source OS it took somebody that has been working on this code for the last 8 year to find this bug.

I will reference this article whenever somebody writes a comment how "all problems would be fixed if MS opened their Office specs, NVidia would open their hardware design and browsers would just follow standards".

Software development is REALLY hard and tiny things can go unnoticed for a very long time until somebody finally sees the light. I hope USB-devices will soon work better on Linux than they do today

Reply Score: 7