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| author | Hans Verkuil | 2016-11-25 09:23:34 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab | 2016-11-29 15:07:17 +0100 |
| commit | f51e80804f084de269954d875c0892b081b7df3c (patch) | |
| tree | cc8711c8323e5ff7fb69599b7dc2aa88c9fd438e /Documentation | |
| parent | [media] uvcvideo: freeing an error pointer (diff) | |
| download | kernel-qcow2-linux-f51e80804f084de269954d875c0892b081b7df3c.tar.gz kernel-qcow2-linux-f51e80804f084de269954d875c0892b081b7df3c.tar.xz kernel-qcow2-linux-f51e80804f084de269954d875c0892b081b7df3c.zip | |
[media] cec: pass parent device in register(), not allocate()
The cec_allocate_adapter function doesn't need the parent device, only the
cec_register_adapter function needs it.
Drop the cec_devnode parent field, since devnode.dev.parent can be used
instead.
This change makes the framework consistent with other frameworks where the
parent device is not used until the device is registered.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/media/kapi/cec-core.rst | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/Documentation/media/kapi/cec-core.rst b/Documentation/media/kapi/cec-core.rst index 8a88dd4ce3d4..81c6d8e93774 100644 --- a/Documentation/media/kapi/cec-core.rst +++ b/Documentation/media/kapi/cec-core.rst @@ -37,9 +37,8 @@ The struct cec_adapter represents the CEC adapter hardware. It is created by calling cec_allocate_adapter() and deleted by calling cec_delete_adapter(): .. c:function:: - struct cec_adapter *cec_allocate_adapter(const struct cec_adap_ops *ops, - void *priv, const char *name, u32 caps, u8 available_las, - struct device *parent); + struct cec_adapter *cec_allocate_adapter(const struct cec_adap_ops *ops, void *priv, + const char *name, u32 caps, u8 available_las); .. c:function:: void cec_delete_adapter(struct cec_adapter *adap); @@ -66,20 +65,19 @@ available_las: the number of simultaneous logical addresses that this adapter can handle. Must be 1 <= available_las <= CEC_MAX_LOG_ADDRS. -parent: - the parent device. - To register the /dev/cecX device node and the remote control device (if CEC_CAP_RC is set) you call: .. c:function:: - int cec_register_adapter(struct cec_adapter \*adap); + int cec_register_adapter(struct cec_adapter *adap, struct device *parent); + +where parent is the parent device. To unregister the devices call: .. c:function:: - void cec_unregister_adapter(struct cec_adapter \*adap); + void cec_unregister_adapter(struct cec_adapter *adap); Note: if cec_register_adapter() fails, then call cec_delete_adapter() to clean up. But if cec_register_adapter() succeeded, then only call |