Re: 16-bit depth on radeonfb

[email protected] Wed, 29 Jul 2026 13:17:43 +0200
Newsgroups gmane.os.netbsd.devel.kernel
Message-ID <amnhV5j5dVbQnF1d@localhost>
Hi Julian,

Thanks for your comments.

On Wed, Jul 29, 2026 at 11:02:43AM +0200, Julian Coleman wrote:
> I think that's OK, apart from:
> ...
> where we change the default depth from 8 to 16.

Yes, an extra #ifdef to allow every alternative would be cleaner.

> I would suggest adding a RADEONFB_DEPTH_16 flag too and setting it in
> your kernel config.

Agreed, having flags for every depth would be best.
I can not though test a changed patch right away.

> It might make sense for it to be the default,

I think so.

> although I'm not sure - which arch are you running on?

i386, my experience is of course arch-biased.

> PS.  Of course, we have multiple ways of doing this, so you could also add
> flags on the device line itself:
> 
>   https://nxr.netbsd.org/xref/src/sys/arch/alpha/conf/GENERIC#539
>   https://nxr.netbsd.org/xref/src/sys/dev/i2c/at24cxx.c#180

Thank you for the reference!

Cheers
/od2uvb