DevHlp_LogEntry

DevHlp_LogEntry provides a device driver interface to the logging facility.

Parameters

log_data_address

is the address of a buffer that contains a variable length Error Log entry. (See the section on the LogAddEntries high level API for further details.) level API for further details.) service the class of logging facility:

0x0

Reserved

0x1

"Old-Style" Error Logging call ("old" 16-bit (DosLogEntry-style) data packet provided).

0x2 - 0x2f

Reserved for future use.

0x80 - 0x8f

Reserved for internal use by the System Logging Service device driver.

0x90

"New_Style" Error Logging call ("new" 32-bit (LogAddEntries-style) data packet provided).

0x91 - 0xffff

Reserved for future use.

Returns

Return code in AX:

Success

non-zero

Failure.

Possible errors:

Invalid log type

Facility unavailable

Facility suspended

Remarks

When CX is set to 80H, DS:SI is set to point to the device driver header block of the System Logging Service device driver.

Example Code

Calling sequence:

LES   BX,log_data_address
MOV   CX,service
MOV   DL,DevHlp_LogEntry  /* LogEntry function code 0x3b */
CALL  [Device_Help]