diff options
| author | Alex Elder <elder@linaro.org> | 2014-10-28 19:36:00 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <greg@kroah.com> | 2014-10-29 08:42:44 +0800 |
| commit | 4ccb6b7abb8ee4ff6fc28468ffe893caa730ea13 (patch) | |
| tree | 11269593d94714a0af62d37aa067644a21db6963 /drivers/staging/greybus/connection.h | |
| parent | 7fba0079ad9a5b1b851947ad3c5b90093b2fc415 (diff) | |
greybus: introduce protocol abstraction
Define a protocol structure that will allow protocols to be
registered dynamically. For now we just introduce a bookkeeping
data structure. Upcoming patches will move protocol-related methods
into the protocol structure, and will start registering protocol
handlers dynamically.
A list of connections using a given protocol is maintained so we can
tell when a protocol is no longer in use. This may not be necessary
(we could use a kref instead) but it may turn out to be a good way
to clean things up.
The interface is gb_protocol_get() and gb_protocol_put() for a
connection, allowing the protocol to be looked up and the connection
structure to be inserted into its list.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>
Diffstat (limited to 'drivers/staging/greybus/connection.h')
| -rw-r--r-- | drivers/staging/greybus/connection.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/staging/greybus/connection.h b/drivers/staging/greybus/connection.h index 830abe7060ba..8056993c00ac 100644 --- a/drivers/staging/greybus/connection.h +++ b/drivers/staging/greybus/connection.h @@ -39,7 +39,9 @@ struct gb_connection { struct rb_node hd_node; struct list_head interface_links; - u8 protocol_id; + + struct gb_protocol *protocol; + struct list_head protocol_links; enum gb_connection_state state; |