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authorDaniel Vetter <daniel.vetter@ffwll.ch>2017-05-31 11:20:45 +0200
committerDaniel Vetter <daniel.vetter@ffwll.ch>2017-06-20 10:41:29 +0200
commitbb2eaba6458ace16f7e3504de8788374cb42b43d (patch)
tree903b380fcd49be80b5f5921034608e9f8dac40fb /drivers/gpu/drm/drm_file.c
parent10631d724deff712343d96dd3017cd323349f761 (diff)
drm/doc: Improve ioctl/fops docs a bit more
I spotted a markup issue, plus adding the descriptions in drm_driver. Plus a few more links while at it. I'm still mildly unhappy with the split between fops and ioctls, but I still think having the ioctls in the uapi chapter makes more sense. Oh well ... v2: Rebase. v3: Move misplace hunk to the right patch. Cc: Stefan Agner <stefan@agner.ch> Acked-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170531092045.3950-1-daniel.vetter@ffwll.ch
Diffstat (limited to 'drivers/gpu/drm/drm_file.c')
-rw-r--r--drivers/gpu/drm/drm_file.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_file.c b/drivers/gpu/drm/drm_file.c
index caad93dab54b..6631f61b66ca 100644
--- a/drivers/gpu/drm/drm_file.c
+++ b/drivers/gpu/drm/drm_file.c
@@ -75,7 +75,7 @@ DEFINE_MUTEX(drm_global_mutex);
* for drivers which use the CMA GEM helpers it's drm_gem_cma_mmap().
*
* No other file operations are supported by the DRM userspace API. Overall the
- * following is an example #file_operations structure::
+ * following is an example &file_operations structure::
*
* static const example_drm_fops = {
* .owner = THIS_MODULE,
@@ -92,6 +92,11 @@ DEFINE_MUTEX(drm_global_mutex);
* For plain GEM based drivers there is the DEFINE_DRM_GEM_FOPS() macro, and for
* CMA based drivers there is the DEFINE_DRM_GEM_CMA_FOPS() macro to make this
* simpler.
+ *
+ * The driver's &file_operations must be stored in &drm_driver.fops.
+ *
+ * For driver-private IOCTL handling see the more detailed discussion in
+ * :ref:`IOCTL support in the userland interfaces chapter<drm_driver_ioctl>`.
*/
static int drm_open_helper(struct file *filp, struct drm_minor *minor);