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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.

RETURN

Allocate ATA host on success, NULL on failure.

LOCKING: Inherited from calling layer (may sleep).

AUTHOR

Jeff Garzik
Author.

COPYRIGHT

April 2019 Kernel Hackers Manual 4.9.