irq_chip_compose_msi_msg9
Componse msi message for a irq chip
Usage
int irq_chip_compose_msi_msg(struct irq_data * data, struct msi_msg * msg);
Arguments
data
Pointer to interrupt specific data
msg
Pointer to the MSI message
Overview
For hierarchical domains we find the first chip in the hierarchy which implements the irq_compose_msi_msg callback. For non hierarchical we use the top level chip.