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Update/correct some comments

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Gregory Nutt
2014-11-29 07:08:30 -06:00
parent ff626d4945
commit 19d31412f7
4 changed files with 31 additions and 5 deletions
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include/nuttx/input/ajoystick.h
+6 -3
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@@ -35,8 +35,9 @@
/* This header file provides definition for a standard analog joystick
* interface. An analog joystick refers to a joystick that provides X/Y
* positional data as integer values such as might be provides by DACs.
* The analog positional data may be accompanied by discrete button data.
* positional data as integer values such as might be provides by Analog-
* to-Digital Conversion (ADC). The analog positional data may also be
* accompanied by discrete button data.
*
* The analog joystick driver exports a standard character driver
* interface. By convention, the analog joystick is registered as an input
@@ -109,7 +110,9 @@
*
* 1) The read() method will always return a single value of size
* struct ajoy_sample_s represent the current joystick positional and the
* state of all joystick buttons. read() never blocks.
* state of all joystick buttons. read() never blocks. X an Y position
* data is raw converted data. Zeroing and scaling must be performed by
* the application.
* 2) The poll() method can be used to notify a client if there is a change
* in any of the joystick button inputs. This feature, of course,
* depends upon interrupt GPIO support from the platform. NOTE: that