ATA_HOST_ACTIVATE(9) | libata Library | ATA_HOST_ACTIVATE(9) |
NAME¶
ata_host_activate - start host, request IRQ and register it
SYNOPSIS¶
int ata_host_activate(struct ata_host * host, int irq, irq_handler_t irq_handler, unsigned long irq_flags, struct scsi_host_template * sht);
ARGUMENTS¶
host
irq
irq_handler
irq_flags
sht
DESCRIPTION¶
After allocating an ATA host and initializing it, most libata LLDs perform three steps to activate the host - start host, request IRQ and register it. This helper takes necessary arguments and performs the three steps in one go.
An invalid IRQ skips the IRQ registration and expects the host to have set polling mode on the port. In this case, irq_handler should be NULL.
LOCKING: Inherited from calling layer (may sleep).
RETURN¶
0 on success, -errno otherwise.
AUTHOR¶
Jeff Garzik
COPYRIGHT¶
March 2017 | Kernel Hackers Manual 4.10 |