Hi, Jason! Jason Cerundolo schrieb: > Hello, > > I am looking for a way to turn off power to a usb port or hub. For > example, to control a usb-powered light or fan. I am trying to find a > software solution not involving discrete components or physical > interaction. I found this site: > http://www.gniibe.org/ac-power-by-usb/ac-power-control.html which makes > me think it is possible.
ACK. It's usually possible to turn the power of the ports on and of all at once or each port seperately, manually on the host controllers (I don't know anything about hubs). See the Datasheet of the USB Host Chips. I.e. ISP1563 from NXP: http://www.nxp.com/acrobat/datasheets/ISP1563_2.pdf Search for "Power Switching" for an example. > I have a usb hub that supports per-port power > switching and another that only supports ganged power switching. Any > help or ideas would be appreciated. Thanks. Check out what functionality http://libusb.sourceforge.net can give you. Regards, -- Clemens Koller __________________________________ R&D Imaging Devices Anagramm GmbH Rupert-Mayer-Straße 45/1 Linhof Werksgelände D-81379 München Tel.089-741518-50 Fax 089-741518-19 http://www.anagramm-technology.com ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Linux-usb-users@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
