36 lines
741 B
C
36 lines
741 B
C
/*++ BUILD Version: 0001 // Increment this if a change has global effects
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Copyright (c) 1995 Microsoft Corporation
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Module Name:
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ntddmodm.h
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Abstract:
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This is the include file that defines all constants and types for
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accessing the modem device.
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Author:
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Tony Ercolano (tonye) 14-Jul-1995
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Revision History:
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--*/
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//
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// NtDeviceIoControlFile IoControlCode values for this device.
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//
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#define IOCTL_MODEM_GET_PASSTHROUGH CTL_CODE(FILE_DEVICE_MODEM, 1,METHOD_BUFFERED,FILE_ANY_ACCESS)
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#define IOCTL_MODEM_SET_PASSTHROUGH CTL_CODE(FILE_DEVICE_MODEM, 2,METHOD_BUFFERED,FILE_ANY_ACCESS)
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#define MODEM_NOPASSTHROUGH 0x00000000U
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#define MODEM_PASSTHROUGH 0x00000001U
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#define MODEM_DCDSNIFF 0x00000002U
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