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NF:mcd.ChangerError |
ChangerError function (mcd.h) |
ChangerError performs device-specific error handling. |
storage\changererror.htm |
storage |
03/29/2018 |
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ChangerError, ChangerError function [Storage Devices], chgrmini_5235b77f-51d1-4fa5-b68c-3e649aed829c.xml, mcd/ChangerError, storage.changererror |
mcd.h |
Mcd.h, Ntddchgr.h |
Desktop |
PASSIVE_LEVEL |
Windows |
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ChangerError performs device-specific error handling.
Pointer to the device object that represents the changer.
Pointer to the SCSI request block for the operation that failed.
Specifies the address of the STATUS_XXX code set by the system. The changer miniclass driver can change the status or leave it as is.
Pointer to a flag that indicates whether to retry the request. The changer miniclass driver can set this flag or leave it as is.
This routine is required.
If an SRB fails with a SCSI status of CHECK CONDITION, the SCSI class driver calls the changer class driver's ChangerClassError routine. ChangerClassError performs device-independent error handling and calls the changer miniclass driver's ChangerError routine.
ChangerError first checks Srb->SrbStatus with SRB_STATUS_AUTOSENSE_VALID to make sure the sense data buffer is valid. If so, it checks the sense data in Srb->SenseInfoBuffer to determine whether to update *Status with a more accurate STATUS_XXX code and/or set the Retry flag before returning to the changer class driver. The changer class driver's retry count determines whether the SRB is actually retried.