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30 lines
1.2 KiB
C
30 lines
1.2 KiB
C
#ifndef REDPILL_SCSI_NOTIFIER_H
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#define REDPILL_SCSI_NOTIFIER_H
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#include <linux/notifier.h> //All other parts including scsi_notifier.h cannot really not use linux/notifier.h
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typedef enum {
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SCSI_EVT_DEV_PROBING, //device is being probed; it can be modified or outright ignored
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SCSI_EVT_DEV_PROBED_OK, //device is probed and ready
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SCSI_EVT_DEV_PROBED_ERR, //device was probed but it failed
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} scsi_event;
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/**
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* Callback signature: void (*f)(struct notifier_block *self, unsigned long state, void *data), where:
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* unsigned long state => scsi_event event
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* void *data => struct scsi_device *sdp
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*
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* Currently these methods are DELIBERATELY limited to SCSI TYPE_DISK scope. If you need other SCSI devices watching
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* add another set of methods (subscribe scsi_device_events() and such, do NOT extend the scope of these methods as
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* other parts of the code rely on pre-filtered events as in most cases listening for ALL devices is a lot of noise).
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*
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* @return
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*/
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int subscribe_scsi_disk_events(struct notifier_block *nb);
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int unsubscribe_scsi_disk_events(struct notifier_block *nb);
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int register_scsi_notifier(void);
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int unregister_scsi_notifier(void);
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#endif //REDPILL_SCSI_NOTIFIER_H
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