diff options
Diffstat (limited to 'Documentation/driver-api/surface_aggregator/client.rst')
| -rw-r--r-- | Documentation/driver-api/surface_aggregator/client.rst | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/Documentation/driver-api/surface_aggregator/client.rst b/Documentation/driver-api/surface_aggregator/client.rst index e519d374c378..e100ab0a24cc 100644 --- a/Documentation/driver-api/surface_aggregator/client.rst +++ b/Documentation/driver-api/surface_aggregator/client.rst @@ -17,7 +17,9 @@ .. |SSAM_DEVICE| replace:: :c:func:`SSAM_DEVICE` .. |ssam_notifier_register| replace:: :c:func:`ssam_notifier_register` .. |ssam_notifier_unregister| replace:: :c:func:`ssam_notifier_unregister` -.. |ssam_request_sync| replace:: :c:func:`ssam_request_sync` +.. |ssam_device_notifier_register| replace:: :c:func:`ssam_device_notifier_register` +.. |ssam_device_notifier_unregister| replace:: :c:func:`ssam_device_notifier_unregister` +.. |ssam_request_do_sync| replace:: :c:func:`ssam_request_do_sync` .. |ssam_event_mask| replace:: :c:type:`enum ssam_event_mask <ssam_event_mask>` @@ -189,7 +191,7 @@ data received from it is converted from little-endian to host endianness. * they do not correspond to an actual SAM/EC request. */ rqst.target_category = SSAM_SSH_TC_SAM; - rqst.target_id = 0x01; + rqst.target_id = SSAM_SSH_TID_SAM; rqst.command_id = 0x02; rqst.instance_id = 0x03; rqst.flags = SSAM_REQUEST_HAS_RESPONSE; @@ -207,12 +209,12 @@ data received from it is converted from little-endian to host endianness. * with the SSAM_REQUEST_HAS_RESPONSE flag set in the specification * above. */ - status = ssam_request_sync(ctrl, &rqst, &resp); + status = ssam_request_do_sync(ctrl, &rqst, &resp); /* * Alternatively use * - * ssam_request_sync_onstack(ctrl, &rqst, &resp, sizeof(arg_le)); + * ssam_request_do_sync_onstack(ctrl, &rqst, &resp, sizeof(arg_le)); * * to perform the request, allocating the message buffer directly * on the stack as opposed to allocation via kzalloc(). @@ -228,7 +230,7 @@ data received from it is converted from little-endian to host endianness. return status; } -Note that |ssam_request_sync| in its essence is a wrapper over lower-level +Note that |ssam_request_do_sync| in its essence is a wrapper over lower-level request primitives, which may also be used to perform requests. Refer to its implementation and documentation for more details. @@ -239,7 +241,7 @@ one of the generator macros, for example via: SSAM_DEFINE_SYNC_REQUEST_W(__ssam_tmp_perf_mode_set, __le32, { .target_category = SSAM_SSH_TC_TMP, - .target_id = 0x01, + .target_id = SSAM_SSH_TID_SAM, .command_id = 0x03, .instance_id = 0x00, }); @@ -312,7 +314,9 @@ Handling Events To receive events from the SAM EC, an event notifier must be registered for the desired event via |ssam_notifier_register|. The notifier must be unregistered via |ssam_notifier_unregister| once it is not required any -more. +more. For |ssam_device| type clients, the |ssam_device_notifier_register| and +|ssam_device_notifier_unregister| wrappers should be preferred as they properly +handle hot-removal of client devices. Event notifiers are registered by providing (at minimum) a callback to call in case an event has been received, the registry specifying how the event |