SCSI Subsystem Interfaces | ||
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pointer to scsi host instance
channel number (rarely other than 0)
target id number
logical unit number
Returns pointer to new struct scsi_device instance or ERR_PTR(-ENODEV) (or some other bent pointer) if something is wrong (e.g. no lu responds at given address)
This call is usually performed internally during a scsi bus scan when an HBA is added (i.e. scsi_add_host). So it should only be called if the HBA becomes aware of a new scsi device (lu) after scsi_add_host has completed. If successful this call we lead to slave_alloc and slave_configure callbacks into the LLD.
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Interface Functions | Up | scsi_unblock_requests |