udi_mgmt_cb_t(3udi)
Common Management Control Block
#include <udi.h>typedef struct { udi_cb_t gcb; } udi_mgmt_cb_t;MEMBERS gcb is a generic control block header, which includes a pointer to the scratch space associated with this control block. The driver may use the scratch space while it owns the control block, but the values are not guaranteed to persist across channel operations.
DESCRIPTION The udi_mgmt_cb_t defines a control block which is used in Management Metalanguage operations that do not require any additional parameters in the control block. This control block is used for requests or indications from the Management Agent to the target driver and is passed back to the Management Agent in the acknowledgement or response operation.
Scratch space size for all Management Metalanguage control blocks is determined by the setting of mgmt_scratch_requirement in the driver's udi_primary_init_t in its udi_init_info. Management Metalanguage control blocks are allocated only by the MA, not by drivers.