On Tue, Jan 27, 2009 at 8:06 PM, Paul Fox <pgf at foxharp.boston.ma.us> wrote: > m. allan noah wrote: > > On Tue, Jan 27, 2009 at 1:56 PM, Ed Hamrick <EdHamrick at aol.com> wrote: > > > I've asked him to release the source code to avision.c, and > > > I'm waiting to see it. I want to see how he got the Xerox > > > DocuMate 150 working in avision.c. I don't have one, and > > > one of my customers wants to use it with VueScan. > > > > > > > A reasonable request, however it makes your Avision support code a > > derivative of of SANE, and therefore you must also release that under > > the GPL when a user asks for all your SANE derived code. The same > > would be true for any other backends that you looked at or borrowed > > from. > > "looked at"? i don't believe that's true. that implies there's > some sort of unpublished trade secret in play. copyright applies > to expression, not concept.
you are correct. the gpl uses US copyright law to define derivative works. This seems to allow inspection, but any copying beyond titles/headers/formatting makes it a derivative work. allan > > paul > =--------------------- > paul fox, pgf at foxharp.boston.ma.us (arlington, ma, where it's 25.3 > degrees) > > -- > sane-devel mailing list: sane-devel at lists.alioth.debian.org > http://lists.alioth.debian.org/mailman/listinfo/sane-devel > Unsubscribe: Send mail with subject "unsubscribe your_password" > to sane-devel-request at lists.alioth.debian.org > -- "The truth is an offense, but not a sin"
