7 Nov
2011
7 Nov
'11
6:39 p.m.
On Monday 07 November 2011 11:35:33 Stephen Warren wrote:
Joe Hershberger wrote at Friday, November 04, 2011 8:25 PM:
-void gpio_free(int gp) +int gpio_free(unsigned gpio) {
- return 0;
}
If you're doing a cleanup pass on this driver, you may as well make gpio_free() do something; it should probably clear gpio_names[gpio].name and perhaps set the pin back to SFIO - in other words, undo gpio_reqeust().
i think the decision made in Linux was that freeing a GPIO should not cause it to change tristate or anything. all it should do is mark it as "available" so something else can request it. -mike