drm_buf_free
#define DRM_IOCTL_FREE_BUFS DRM_IOW( 0x1a, struct drm_buf_free)
typedef struct drm_buf_free drm_buf_free_t;
#define DRM_IOCTL_FREE_BUFS DRM_IOW( 0x1a, struct drm_buf_free)
typedef struct drm_buf_free drm_buf_free_t;