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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.

RETURNS

Allocate ATA host on success, NULL on failure.

LOCKING

Inherited from calling layer (may sleep).

AUTHOR

Jeff Garzik
Author.

COPYRIGHT

May 2018 Kernel Hackers Manual 3.16