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authorRandy Dunlap <rdunlap@infradead.org>2021-03-03 01:35:19 +0300
committerJonathan Corbet <corbet@lwn.net>2021-03-09 03:15:36 +0300
commitebe14885ab54beb63502fa84c8b7e3941385aee6 (patch)
tree96998fcbcd5d373f9847d2dbdaf695a903ee64a7 /Documentation/input
parenta9600c98582a2c64dc87b60cb6260eb20e66f557 (diff)
downloadlinux-ebe14885ab54beb63502fa84c8b7e3941385aee6.tar.xz
input: Documentation: corrections for gameport-programming.rst
Use "E.g." instead of "Eg.". Use correct index for buttons[] array. Update all of struct gameport's descriptions. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: linux-input@vger.kernel.org Cc: Jonathan Corbet <corbet@lwn.net> Cc: linux-doc@vger.kernel.org Link: https://lore.kernel.org/r/20210302223523.20130-5-rdunlap@infradead.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'Documentation/input')
-rw-r--r--Documentation/input/gameport-programming.rst35
1 files changed, 23 insertions, 12 deletions
diff --git a/Documentation/input/gameport-programming.rst b/Documentation/input/gameport-programming.rst
index c96911df1c54..7d7063ad0f9f 100644
--- a/Documentation/input/gameport-programming.rst
+++ b/Documentation/input/gameport-programming.rst
@@ -21,7 +21,7 @@ choose which one to program the hardware to, starting from the more exotic
addresses is preferred, because the likelihood of clashing with the standard
0x201 address is smaller.
-Eg. if your driver supports addresses 0x200, 0x208, 0x210 and 0x218, then
+E.g. if your driver supports addresses 0x200, 0x208, 0x210 and 0x218, then
0x218 would be the address of first choice.
If your hardware supports a gameport address that is not mapped to ISA io
@@ -78,7 +78,7 @@ the gameport. To register a cooked gameport::
for (i = 0; i < 4; i++)
axes[i] = my_mmio[i];
- buttons[i] = my_mmio[4];
+ buttons[0] = my_mmio[4];
}
int my_open(struct gameport *gameport, int mode)
@@ -117,25 +117,28 @@ Simple::
The gameport structure
~~~~~~~~~~~~~~~~~~~~~~
-.. note::
-
- This section is outdated. There are several fields here that don't
- match what's there at include/linux/gameport.h.
-
::
struct gameport {
- void *private;
+ void *port_data;
A private pointer for free use in the gameport driver. (Not the joystick
driver!)
::
- int number;
+ char name[32];
+
+Driver's name as set by driver calling gameport_set_name(). Informational
+purpose only.
+
+::
+
+ char phys[32];
-Number assigned to the gameport when registered. Informational purpose only.
+gameport's physical name/description as set by driver calling gameport_set_phys().
+Informational purpose only.
::
@@ -210,8 +213,16 @@ gameport.
::
- struct gameport_dev *dev;
- struct gameport *next;
+ struct timer_list poll_timer;
+ unsigned int poll_interval; /* in msecs */
+ spinlock_t timer_lock;
+ unsigned int poll_cnt;
+ void (*poll_handler)(struct gameport *);
+ struct gameport *parent, *child;
+ struct gameport_driver *drv;
+ struct mutex drv_mutex; /* protects serio->drv so attributes can pin driver */
+ struct device dev;
+ struct list_head node;
For internal use by the gameport layer.