Hi Greg, On Fri, Sep 05, 2025 at 12:32:45PM +0200, Greg Kroah-Hartman wrote: > On Fri, Sep 05, 2025 at 01:25:33PM +0300, Sakari Ailus wrote: > > Hi Jonathan, Greg, Miguel, others, > > > > On Tue, May 27, 2025 at 08:56:45AM +0300, Sakari Ailus wrote: > > > Hello all, > > > > > > The Media Controller uses IOCTL numbers with '|' type up to 0x81 but the > > > range from 0x80 upwards is documented to belong to samples. The samples, > > > however, are currently using these values. Solve the problem by bumping > > > the top of the MC range and the samples allocation by 0x10 as the samples > > > don't require a stable IOCTL interface. > > > > Could you comment on this, please? > > Why not just live with the overlap? What problem is this causing? It's > the MC subsystem's "bug" in that it took over an ioctl range that was > already documented as being used by something else :) I do agree ideally this shouldn't have happened in the first place, but I think it's also cleaner if we can have separate ranges. Pushing samples out a little doesn't look like an issue to me. The set also adds a comment on not adding media IOCTLs beyond the new allocation. -- Kind regards, Sakari Ailus
