On Fri, Dec 3, 2010 at 7:59 AM, Xiaofan Chen wrote: > On Fri, Dec 3, 2010 at 6:10 AM, Alex Harford wrote: >> They are relatively easy to design in, but why not use a regular USB >> hub that can control the power of its ports? =A0Many hubs can do this. >> Most root hubs cannot. >> >> http://www.gniibe.org/ac-power-by-usb/ac-power-control.html >> >> I'm not sure if libusb for Win32 supports it though, but I expect it >> would since it's just a USB control packet. >> >> http://www.libusb.org/wiki/libusb-win32 >> > > The hub support is dropped in the later versions due to problems > with the filter driver. > http://sourceforge.net/tracker/?func=3Ddetail&aid=3D3061923&group_id=3D7813= 8&atid=3D552262 I am one of the admins of libusb-win32 project, mainly for support. Travis Robinson is the main developer now. --=20 Xiaofan --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .