Powering off a USB port

Alexander Pohoyda alexander.pohoyda at gmx.net
Mon Aug 25 13:23:06 PDT 2003


Hi all,

I'm using a USB Lamp and would like to turn it off when a screensaver
starts. From my reading of a USB 2.0 specification I found out that
it is possible to power off a USB port via ClearPortFeature(PORT_POWER)
call.

Has anybody tried this before? What would be the correct place to add
this feature to? usbd or usbdevs?


-- 
Alexander Pohoyda
<alexander.pohoyda at gmx.net>


More information about the freebsd-questions mailing list