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input: Documentation: corrections for gameport-programming.rst

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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>
This commit is contained in:
Randy Dunlap 2021-03-02 14:35:19 -08:00 committed by Jonathan Corbet
parent a9600c9858
commit ebe14885ab
1 changed files with 23 additions and 12 deletions
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35
Documentation/input/gameport-programming.rst
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@ -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 addresses is preferred, because the likelihood of clashing with the standard
0x201 address is smaller. 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. 0x218 would be the address of first choice.
If your hardware supports a gameport address that is not mapped to ISA io 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++) for (i = 0; i < 4; i++)
axes[i] = my_mmio[i]; axes[i] = my_mmio[i];
buttons[i] = my_mmio[4]; buttons[0] = my_mmio[4];
} }
int my_open(struct gameport *gameport, int mode) int my_open(struct gameport *gameport, int mode)
@ -117,25 +117,28 @@ Simple::
The gameport structure 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This section is outdated.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 { struct gameport {
void *private; void *port_data;
A private pointer for free use in the gameport driver. (Not the joystick A private pointer for free use in the gameport driver. (Not the joystick
driver!) driver!)
:: ::
int number; char name[32];
Number assigned to the gameport when registered. Informational purpose only. Driver's name as set by driver calling gameport_set_name(). Informational
purpose only.
::
char phys[32];
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 timer_list poll_timer;
struct gameport *next; 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. For internal use by the gameport layer.