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authorTomas Winkler <tomas.winkler@intel.com>2015-07-26 09:54:20 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-08-03 17:30:00 -0700
commit3c7c8468e5d993dfe377a67e41cbb23cda93af9e (patch)
tree30d8a6572ce41c5cfda0b3599c37bf149b082e22 /Documentation/misc-devices
parentb38a362fad6686dd580a50590053a76ded601a0b (diff)
downloadlinux-3c7c8468e5d993dfe377a67e41cbb23cda93af9e.tar.bz2
mei: add async event notification ioctls
Add ioctl IOCTL_MEI_NOTIFY_SET for enabling and disabling async event notification. Add ioctl IOCTL_MEI_NOTIFY_GET for receiving and acking an event notification. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/misc-devices')
-rw-r--r--Documentation/misc-devices/mei/mei.txt45
1 files changed, 44 insertions, 1 deletions
diff --git a/Documentation/misc-devices/mei/mei.txt b/Documentation/misc-devices/mei/mei.txt
index 8d47501bba0a..91c1fa34f48b 100644
--- a/Documentation/misc-devices/mei/mei.txt
+++ b/Documentation/misc-devices/mei/mei.txt
@@ -96,7 +96,7 @@ A code snippet for an application communicating with Intel AMTHI client:
IOCTL
=====
-The Intel MEI Driver supports the following IOCTL command:
+The Intel MEI Driver supports the following IOCTL commands:
IOCTL_MEI_CONNECT_CLIENT Connect to firmware Feature (client).
usage:
@@ -125,6 +125,49 @@ The Intel MEI Driver supports the following IOCTL command:
data that can be sent or received. (e.g. if MTU=2K, can send
requests up to bytes 2k and received responses up to 2k bytes).
+ IOCTL_MEI_NOTIFY_SET: enable or disable event notifications
+
+ Usage:
+ uint32_t enable;
+ ioctl(fd, IOCTL_MEI_NOTIFY_SET, &enable);
+
+ Inputs:
+ uint32_t enable = 1;
+ or
+ uint32_t enable[disable] = 0;
+
+ Error returns:
+ EINVAL Wrong IOCTL Number
+ ENODEV Device is not initialized or the client not connected
+ ENOMEM Unable to allocate memory to client internal data.
+ EFAULT Fatal Error (e.g. Unable to access user input data)
+ EOPNOTSUPP if the device doesn't support the feature
+
+ Notes:
+ The client must be connected in order to enable notification events
+
+
+ IOCTL_MEI_NOTIFY_GET : retrieve event
+
+ Usage:
+ uint32_t event;
+ ioctl(fd, IOCTL_MEI_NOTIFY_GET, &event);
+
+ Outputs:
+ 1 - if an event is pending
+ 0 - if there is no even pending
+
+ Error returns:
+ EINVAL Wrong IOCTL Number
+ ENODEV Device is not initialized or the client not connected
+ ENOMEM Unable to allocate memory to client internal data.
+ EFAULT Fatal Error (e.g. Unable to access user input data)
+ EOPNOTSUPP if the device doesn't support the feature
+
+ Notes:
+ The client must be connected and event notification has to be enabled
+ in order to receive an event
+
Intel ME Applications
=====================