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The following table shows the ACM functions and their associated calls.
| Programming element | Description |
|---|---|
| ACM_IOControl | Called by the ACM to pass messages to and receive information from the driver. |
| ACM_Init | Called by the Device Manager when the driver is loaded. |
| ACM_Deinit | Called by the Device Manager when the driver is unloaded. |
| ACM_Open (ACM Driver) | Called by the ACM when the driver is opened for use. |
| ACM_Close | Called by the ACM when the driver is no longer needed. |
| ACM_Read | Never called. |
| ACM_Write | Never called. |
| ACM_Seek | Never called. |
| ACM_PowerUp | Called by the Device Manager when the system resumes from the suspend state. |
| ACM_PowerDown | Called by the Device Manager when the system enters the suspend state. |
See Also
ACM Driver Messages | ACM Driver Structures
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