ATA_HOST_ALLOC(9) libata Library ATA_HOST_ALLOC(9)NAME
ata_host_alloc - allocate and init basic ATA host resources
SYNOPSIS
struct ata_host * ata_host_alloc(struct device * dev, int max_ports);
ARGUMENTS
dev
generic device this host is associated with
max_ports
maximum number of ATA ports associated with this host
DESCRIPTION
Allocate and initialize basic ATA host resources. LLD calls this
function to allocate a host, initializes it fully and attaches it using
ata_host_register.
max_ports ports are allocated and host->n_ports is initialized to
max_ports. The caller is allowed to decrease host->n_ports before
calling ata_host_register. The unused ports will be automatically freed
on registration.
RETURNS
Allocate ATA host on success, NULL on failure.
LOCKING
Inherited from calling layer (may sleep).
AUTHOR
Jeff Garzik
Author.
COPYRIGHTKernel Hackers Manual 2.6. November 2013 ATA_HOST_ALLOC(9)