On Mon, 2014-03-24 at 21:54 +0100, Marek Vasut wrote: > > +int sunxi_gpio_set_cfgpin(u32 pin, u32 val); > > +int sunxi_gpio_get_cfgpin(u32 pin); > > +int sunxi_gpio_set_drv(u32 pin, u32 val); > > +int sunxi_gpio_set_pull(u32 pin, u32 val); > > +int name_to_gpio(const char *name); > > +#define name_to_gpio name_to_gpio > > What is this ugly define doing here ?
common/cmd_gpio.c uses the #ifndef name_to_gpio pattern to provide (or not) a default fallback implementation. I think this is a reasonably (but not very) common idiom for such cases where the non-default variant is not best expressed as a macro. Ian. -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
