SYNOPSIS
- int pci_msi_vec_count(struct pci_dev * dev);
ARGUMENTS
dev
-
- device to report about
DESCRIPTION
This function returns the number of MSI vectors a device requested via Multiple Message Capable register. It returns a negative errno if the device is not capable sending MSI interrupts. Otherwise, the call succeeds and returns a power of two, up to a maximum of 2^5 (32), according to the MSI specification.
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