Re: RE: [Intel-gfx] DRM Inquiry

2018-06-13 Thread John Sledge
Hi Jani, The end goal was already achieve by the advice you gave the DRM_DP_AUX_CHARDEV.I just like to extend my knowledge into DRM such as a scenario having a kernel version that doesn't have the DRM_DP_AUX_CHARDEV yet. Would it possible to implement specific DRM_DP_AUX_CHARDEV to it. Thanks,J

Re: RE: [Intel-gfx] DRM Inquiry

2018-06-13 Thread Jani Nikula
On Wed, 13 Jun 2018, John Sledge wrote: > I like to understand how the DRM_DP_AUX_CHARDEV=y kick off. Try 'git grep DRM_DP_AUX_CHARDEV' in your kernel git repo, and see how it affects conditional compilation. This list isn't kernel development 101. You still didn't say what your end goal is. Fo

Re: RE: [Intel-gfx] DRM Inquiry

2018-06-12 Thread John Sledge
Hi Jani, I like to understand how the DRM_DP_AUX_CHARDEV=y kick off. Regards,John On Monday, June 11, 2018, 7:36:51 PM GMT+8, Jani Nikula wrote: On Mon, 11 Jun 2018, John Sledge wrote: > Thanks for the help. I was able to manage your advice on the > drm_dp_aux_chardev. Though I still

Re: RE: [Intel-gfx] DRM Inquiry

2018-06-11 Thread Jani Nikula
On Mon, 11 Jun 2018, John Sledge wrote: > Thanks for the help. I was able to manage your advice on the > drm_dp_aux_chardev. Though I still need to learn more about the DRM vs > kernel process flow. Like for example, upon changing/adding > DRM_DP_AUX_CHARDEV in kernel .config, How did DRM_DP_AUX_C

Re: RE: [Intel-gfx] DRM Inquiry

2018-06-11 Thread John Sledge
Hi Jani, Thanks for the help. I was able to manage your advice on the drm_dp_aux_chardev. Though I still need to learn more about the DRM vs kernel process flow. Like for example, upon changing/adding DRM_DP_AUX_CHARDEV in kernel .config, How did DRM_DP_AUX_CHARDEV was being invoke here? From t

RE: [Intel-gfx] DRM Inquiry

2018-05-25 Thread Jani Nikula
On Fri, 25 May 2018, "Taylor, Clinton A" wrote: > Looks like the seek=%d in the sprintf is not working. Yeah. Try skip=%d instead. BR, Jani. -- Jani Nikula, Intel Open Source Graphics Center ___ dri-devel mailing list dri-devel@lists.freedesktop.org

RE: [Intel-gfx] DRM Inquiry

2018-05-25 Thread Taylor, Clinton A
: Friday, May 25, 2018 1:11 AM To: dri-devel@lists.freedesktop.org; Jani Nikula Cc: intel-...@lists.freedesktop.org Subject: Re: [Intel-gfx] DRM Inquiry Hi Jani, I seek 0-800 and here's what I get, all 11 0A in hex. Not sure if this is the brightness value of the display. I also did a test, w