- 追加された行はこの色です。
- 削除された行はこの色です。
*参照元 [#r691946c]
#backlinks
*説明 [#f076daba]
-パス: [[linux-4.4.1/]]
-FIXME: これは何?
--説明
**引数 [#db9da04b]
-struct v4l2_ctrl_handler *hdl
--
--[[linux-4.4.1/v4l2_ctrl_handler]]
-unsigned nr_of_controls_hint
--
-struct lock_class_key *key
--
--[[linux-4.4.1/lock_class_key]]
-const char *name
--
**返り値 [#w5351395]
-int
--
**参考 [#u5cfe3b4]
*実装 [#v541ff2c]
/* Initialize the handler */
int v4l2_ctrl_handler_init_class(struct v4l2_ctrl_handler *hdl,
unsigned nr_of_controls_hint,
struct lock_class_key *key, const char *name)
{
hdl->lock = &hdl->_lock;
mutex_init(hdl->lock);
lockdep_set_class_and_name(hdl->lock, key, name);
-
--[[linux-4.4.1/mutex_init()]]
--[[linux-4.4.1/lockdep_set_class_and_name()]]
INIT_LIST_HEAD(&hdl->ctrls);
INIT_LIST_HEAD(&hdl->ctrl_refs);
-
--[[linux-4.4.1/INIT_LIST_HEAD()]]
hdl->nr_of_buckets = 1 + nr_of_controls_hint / 8;
hdl->buckets = kcalloc(hdl->nr_of_buckets, sizeof(hdl->buckets[0]),
GFP_KERNEL);
hdl->error = hdl->buckets ? 0 : -ENOMEM;
-
--[[linux-4.4.1/kcalloc()]]
return hdl->error;
}
EXPORT_SYMBOL(v4l2_ctrl_handler_init_class);
-
--[[linux-4.4.1/EXPORT_SYMBOL()]]
*コメント [#b8e37ddb]