The used patch was made by Stefan Lippers-Hollmann <s.l-h@gmx.de>, I found it googleing. The patch fix the compile errors with kernel 2.6.24
Created attachment 142471 [details] media-video/qc-usb-0.6.6.ebuild
Created attachment 142473 [details] files/qc-usb-0.6.6-kernel-2.6.24.patch
fix is in tree.