table of contents
| PCI_ENABLE_MSI_RANGE(9) | Hardware Interfaces | PCI_ENABLE_MSI_RANGE(9) |
NAME¶
pci_enable_msi_range - configure device's MSI capability structure
SYNOPSIS¶
int pci_enable_msi_range(struct pci_dev * dev, int minvec, int maxvec);
ARGUMENTS¶
dev
device to configure
minvec
minimal number of interrupts to configure
maxvec
maximum number of interrupts to configure
DESCRIPTION¶
This function tries to allocate a maximum possible number of interrupts in a range between minvec and maxvec. It returns a negative errno if an error occurs. If it succeeds, it returns the actual number of interrupts allocated and updates the dev's irq member to the lowest new interrupt number; the other interrupt numbers allocated to this device are consecutive.
COPYRIGHT¶
| June 2024 | Kernel Hackers Manual 3.10 |