*/
#include <linux/module.h>
-#include <linux/sched.h>
#include <linux/errno.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
return 0;
}
-static irqreturn_t uctrl_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t uctrl_interrupt(int irq, void *dev_id)
{
struct uctrl_driver *driver = (struct uctrl_driver *)dev_id;
printk("in uctrl_interrupt\n");
return IRQ_HANDLED;
}
-static struct file_operations uctrl_fops = {
+static const struct file_operations uctrl_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
.ioctl = uctrl_ioctl,
struct linux_prom_irqs tmp_irq[2];
unsigned int vaddr[2] = { 0, 0 };
int tmpnode, uctrlnode = prom_getchild(prom_root_node);
+ int err;
tmpnode = prom_searchsiblings(uctrlnode, "obio");
if(!driver->irq)
driver->irq = tmp_irq[0].pri;
- request_irq(driver->irq, uctrl_interrupt, 0, "uctrl", driver);
+ err = request_irq(driver->irq, uctrl_interrupt, 0, "uctrl", driver);
+ if (err) {
+ printk("%s: unable to register irq %d\n",
+ __FUNCTION__, driver->irq);
+ return err;
+ }
if (misc_register(&uctrl_dev)) {
printk("%s: unable to get misc minor %d\n",
}
driver->regs->uctrl_intr = UCTRL_INTR_RXNE_REQ|UCTRL_INTR_RXNE_MSK;
- printk("uctrl: 0x%x (irq %d)\n", driver->regs, driver->irq);
+ printk("uctrl: 0x%p (irq %d)\n", driver->regs, driver->irq);
uctrl_get_event_status();
uctrl_get_external_status();
return 0;