On Mon, Oct 27, 2014 at 01:57:27PM -0200, Mauro Carvalho Chehab wrote: > Em Mon, 27 Oct 2014 10:25:48 -0400 > Michael Ira Krufky <mkrufky@xxxxxxxxxxx> escreveu: > > > I like the idea of supporting older firmware revisions if the new one > > is not present, but, the established president for this sort of thing > > has always been to replace older firmware with newer firmware without > > backward compatibility support for older binaries. > > No, we're actually adding backward support. There are some drivers > already with it. See for example xc4000 (changeset da7bfa2c5df). > > > Although the current driver can work with both old and new firmware > > versions, this hasn't been the case in the past, and won't always be > > the case with future firmware revisions. > > Yeah, we did a very crap job breaking backward firmware compat in > the past. We're not doing it anymore ;) > > > Hauppauge has provided links to the new firmware for both the XC5000 > > and XC5000C chips along with licensing. Maybe instead, we can just > > upstream those into the linux-firmware packages for distribution. > > Upstreaming to linux-firmware was done already for the previous firmwares. > The firmwares at linux-firmware for xc5000 and xc5000c were merged back > there for 3.17 a few weeks ago. > > Feel free to submit them a new version. > > > I don't think supporting two different firmware versions is a good > > idea for the case of the xc5000 driver. > > Why not? It should work as-is with either version. We can always add > some backward compat code if needed. FWIW, Linus recently addressed the topic wrt wireless firmware: http://article.gmane.org/gmane.linux.kernel.wireless.general/126794 HTH, Johannes -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
