Hi Mauro, On Tue, Jan 12, 2016 at 11:43 AM, Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxx> wrote: > That's the second part of the media patches. It contains the media controller > next generation patches, with is the result of one year of discussions and > development. It also contains patches to enable media controller support > at the DVB subsystem. > > The goal is to improve the media controller to allow proper support for > other types of Video4Linux devices (radio and TV ones) and to extend the > media controller functionality to allow it to be used by other subsystems > like DVB, ALSA and IIO. > > In order to use the new functionality, a new ioctl is needed > (MEDIA_IOC_G_TOPOLOGY). As we're still discussing how to pack the struct > fields of this ioctl in order to avoid compat32 issues, I decided to add > a patch at the end of this series commenting out the new ioctl, in order > to postpone the addition of the new ioctl to the next Kernel version (4.6). > With that, no userspace visible changes should happen at the media > controller API, as the existing ioctls are untouched. Yet, it helps > DVB, ALSA and IIO developers to develop and test the patches adding media > controller support there, as the core will contain all required internal > changes to allow adding support for devices that belong to those > subsystems. > > Regards, > Mauro > > The following changes since commit 768acf46e1320d6c41ed1b7c4952bab41c1cde79: > > [media] rc: sunxi-cir: Initialize the spinlock properly (2015-12-23 15:51:40 -0200) > > are available in the git repository at: > > git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media tags/media/v4.5-2 > > for you to fetch changes up to be0270ec89e6b9b49de7e533dd1f3a89ad34d205: > > [media] Postpone the addition of MEDIA_IOC_G_TOPOLOGY (2016-01-11 12:35:17 -0200) After merging this into mainline, I get the BUG_ON() and crash I reported ca. one month ago in "vsp1 BUG_ON() and crash (Re: [PATCH v9 03/12] media: Entities, pads and links)" ( https://lkml.org/lkml/2015/12/14/373). Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds
