Docs » Autodocs » exec.library » CloseDevice
CloseDevice -- conclude access to a device
CloseDevice(iORequest)
A1
void CloseDevice(struct IORequest *);
This function informs the device that access to a device/unit
previously opened has been concluded. The device may perform
certain house-cleaning operations.
The user must ensure that all outstanding IORequests have been
returned before closing the device. The AbortIO function can kill
any stragglers.
After a close, the I/O request structure is free to be reused.
Starting with V36 exec it is safe to CloseDevice() with an
IORequest that is either cleared to zeros, or failed to
open.
iORequest - pointer to an I/O request structure
OpenDevice()
|
