sca_intr
if (request_irq(irq, sca_intr, 0, devname, card)) {
if (request_irq(irq, sca_intr, 0, devname, card)) {
if (request_irq(pdev->irq, sca_intr, IRQF_SHARED, "pc300", card)) {
if (request_irq(pdev->irq, sca_intr, IRQF_SHARED, "pci200syn", card)) {