>Number: 157070
>Category: kern
>Synopsis: Improve API description in gpio_if.m
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: change-request
>Submitter-Id: current-users
>Arrival-Date: Sun May 15 18:00:21 UTC 2011
>Closed-Date:
>Last-Modified:
>Originator: Henrik Brix Andersen
>Release: FreeBSD 9.0-CURRENT i386
>Organization:
>Environment:
System: FreeBSD drpepper.brixandersen.dk 9.0-CURRENT FreeBSD 9.0-CURRENT #3
r221961: Sun May 15 17:11:34 CEST 2011
r...@drpepper.brixandersen.dk:/usr/obj/usr/home/brix/projects/freebsd/src/head/sys/GENERIC
i386
>Description:
The API description for the GPIO_PIN_MAX() method is misleading. The function
should provide the maximum supported pin_num, not the total number of pins.
Most (if not all) in-tree GPIO drivers already name the second argument to this
function 'maxpin', which seems less confusing.
>How-To-Repeat:
>Fix:
The following patch improves the API description and renames the second
argument to better reflect the intent.
--- gpio_if.m.diff begins here ---
Index: sys/dev/gpio/gpio_if.m
===================================================================
--- sys/dev/gpio/gpio_if.m (revision 221961)
+++ sys/dev/gpio/gpio_if.m (working copy)
@@ -32,11 +32,11 @@
INTERFACE gpio;
#
-# Get total number of pins
+# Get the maximum pin_num
#
METHOD int pin_max {
device_t dev;
- int *npins;
+ int *maxpin;
};
#
--- gpio_if.m.diff ends here ---
>Release-Note:
>Audit-Trail:
>Unformatted:
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