Mon, 17 Nov 2014 10:59:09 +0100 от Uwe Kleine-König <[email protected]>: > Hello Richard, > > > >>>> So finally the prototypes would be: > > >>>> int mctrl_gpio_request_irqs(struct mctrl_gpios*, struct > > >>>> uart_port*, irqhandler_t); > > >>>> void mctrl_gpio_free_irqs(struct mctrl_gpios*); > > >> > > >> I think: > > >> > > >> struct mctrl_gpios { > > >> struct uart_port *port; > > >> struct { > > >> gpio_desc *gpio; > > >> unsigned int irq; > > I think it's just "int irq;" there > irqs are unsigned. Some functions returning an irq use "int", but > depending on who you ask this only for error reporting or a relict. > Use 0 for invalid/unused in mctrl_gpio*.
afaik, IRQ 0 is valid irq number. ---
