Re: [PATCH 1/1] ALSA: usb: initial USB Audio Device Class 3.0 support

From: Greg Kroah-Hartman
Date: Thu Nov 09 2017 - 03:04:51 EST


On Wed, Nov 08, 2017 at 03:38:35PM +0100, Takashi Iwai wrote:
> On Tue, 07 Nov 2017 03:01:20 +0100,
> Ruslan Bilovol wrote:
> >
> > Recently released USB Audio Class 3.0 specification
> > introduces many significant changes comparing to
> > previous versions, like
> > - new Power Domains, support for LPM/L1
> > - new Cluster descriptor
> > - changed layout of all class-specific descriptors
> > - new High Capability descriptors
> > - New class-specific String descriptors
> > - new and removed units
> > - additional sources for interrupts
> > - removed Type II Audio Data Formats
> > - ... and many other things (check spec)
> >
> > It also provides backward compatibility through
> > multiple configurations, as well as requires
> > mandatory support for BADD (Basic Audio Device
> > Definition) on each ADC3.0 compliant device
> >
> > This patch adds initial support of UAC3 specification
> > that is enough for Generic I/O Profile (BAOF, BAIF)
> > device support from BADD document.
> >
> > Signed-off-by: Ruslan Bilovol <ruslan.bilovol@xxxxxxxxx>
>
> The patch looks good, but the timing is fairly late for merging to
> 4.15.

Isn't kbuild barfing all over these? Is that because of the cross-tree
changes needed?

> So from my side, the primary question is whether the changes in USB
> (audio) header files are OK for USB guys.
>
> Greg, could you check these changes and give an ack if it's OK to
> merge? Or if you prefer postpone, just let me know.

I don't object to the USB header changes, as long as the fixes you point
out are made :)

thanks,

greg k-h