write_irq
int write_irq);
um_free_irq(chan->line->write_irq, chan);
um_free_irq(chan->line->write_irq, chan);
int write_chan(struct chan *chan, const u8 *buf, size_t len, int write_irq)
line->write_irq);
line->write_irq);
line->write_irq);
line->write_irq = err;
int read_irq, write_irq;
write_irq(dev, lp->chip_type, i);
write_irq(dev, lp->chip_type, dev->irq);