1ATA_HOST_ACTIVATE(9)            libata Library            ATA_HOST_ACTIVATE(9)
2
3
4

NAME

6       ata_host_activate - start host, request IRQ and register it
7

SYNOPSIS

9       int ata_host_activate(struct ata_host * host, int irq,
10                             irq_handler_t irq_handler,
11                             unsigned long irq_flags,
12                             struct scsi_host_template * sht);
13

ARGUMENTS

15       host
16           target ATA host
17
18       irq
19           IRQ to request
20
21       irq_handler
22           irq_handler used when requesting IRQ
23
24       irq_flags
25           irq_flags used when requesting IRQ
26
27       sht
28           scsi_host_template to use when registering the host
29

DESCRIPTION

31       After allocating an ATA host and initializing it, most libata LLDs
32       perform three steps to activate the host - start host, request IRQ and
33       register it. This helper takes necessasry arguments and performs the
34       three steps in one go.
35
36       An invalid IRQ skips the IRQ registration and expects the host to have
37       set polling mode on the port. In this case, irq_handler should be NULL.
38

LOCKING

40       Inherited from calling layer (may sleep).
41

RETURNS

43       0 on success, -errno otherwise.
44

AUTHOR

46       Jeff Garzik
47           Author.
48

50Kernel Hackers Manual 2.6.         June 2019              ATA_HOST_ACTIVATE(9)
Impressum