diff options
Diffstat (limited to 'Documentation/misc-devices/mei/mei.txt')
| -rw-r--r-- | Documentation/misc-devices/mei/mei.txt | 45 |
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 ===================== |