On Tuesday 07 October 2014 07:32:18 Takashi Iwai wrote: > At Mon, 6 Oct 2014 20:41:50 +0200, > > Andreas Mohr wrote: > > On Mon, Oct 06, 2014 at 04:13:12PM +0200, Takashi Iwai wrote: > > > At Mon, 6 Oct 2014 15:55:18 +0200, > > > > > > Ondrej Zary wrote: > > > > ES938 does not depend on ES18xx and can be connected to any device > > > > with MIDI interface. Maybe there are some other cards with this chip. > > > > > > Please prove it :) > > > > > :( > > : > > > That said, I'm not willing to merge the patch in the current form. > > > One of the reason is that this can be implemented pretty easily in > > > user-space. Another is that it's a deadly old device, and likely only > > > handful boards are still running in the world, thus no much motivation > > > to bloat the kernel code for that. We're even discussing to get rid > > > of ISA codes from the kernel tree nowadays. > > > > > > Sorry, the patch was submitted 10 years too late. > > > > > :(( > > > > Given that I hate the forces that are increasingly coming into play here > > (but of course I do see the bigger picture, namely of kernel tree bloat), > > I think I have an idea which might be useful to accept: > > for every piece of sufficiently "vintage" submission, > > people would be tasked with offering (or somehow ensuring) > > a sufficiently closely time-related cleanup in other places. > > > > Thus, given a "diffstat penalty" (lines added minus lines removed) > > of the vintage support patch: > > > > Additionally offer a cleanup patch > > which gets rid of redundantly implemented kernel tree functionality: > > - for 15 year old devices: 0.5 * diffstat_penalty > > - for 20 year old devices: 1.0 * diffstat_penalty > > - for 25 year old devices: 1.5 * diffstat_penalty > > - for 30 year old devices: whaaa? > > The kernel bloat is one side, and your proposal would help to keep > figure. But another side is the maintenance, as Clemens pointed. > It's obviously more difficult for exotic hardware devices. So, it's > really case-by-case. > > Speaking of this particular patch, however, the reason for NAK isn't > (only) the vintage. There are other concerns as I raised, especially > the ugliness of the interface it uses, and this doesn't have to be a > kernel stuff at all. You could implement it as a user-space alsa-lib > plugin as well.
So do I understand correctly that there is no (right) way for a kernel driver to issue MIDI commands? Is it possible for an alsa-lib plugin to automatically load when an ES18xx sound card is present to check for ES938 (without repeating the detection on each application launch)? -- Ondrej Zary -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/