KbdSynch

This call synchronizes access from a keyboard subsystem to the keyboard device driver.

KbdSynch

(IOWait)

IOWait (USHORT) - input

Wait for the bond. Values are:

Value

Definition
0
Indicates the requestor does not wait for access to the device driver.
1
Indicates the requestor waits for access to the device driver.
rc (USHORT) - return
Return code descriptions are:
• NO_ERROR 121
  ERROR_SEM_TIMEOUT
  Remarks

  KbdSynch blocks all other threads within a session until return from the subsystem to the router. To ensure proper synchronization, KbdSynch should be issued by a keyboard subsystem if it intends to issue a DosDevIOCtl or access dynamically shared data. KbdSynch does not protect globally shared data from threads in other sessions.

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