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ata_host_activate
Langue: en
Version: June 2009 (debian - 07/07/09)
Section: 9 (Appels noyau Linux)
NAME
ata_host_activate - start host, request IRQ and register itSYNOPSIS
- 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
- target ATA host
irq
- IRQ to request
irq_handler
- irq_handler used when requesting IRQ
irq_flags
- irq_flags used when requesting IRQ
sht
- scsi_host_template to use when registering the host
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 necessasry 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).
RETURNS
0 on success, -errno otherwise.
AUTHOR
Jeff Garzik
- Author.
COPYRIGHT
Contenus ©2006-2024 Benjamin Poulain
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