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isa.txt: standardize document format

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Each text file under Documentation follows a different
format. Some doesn't even have titles!

Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:

- Use the main title standard for this document;
- replace _foo_ by **foo** for emphasis;
- mark literal blocks as such.

Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Mauro Carvalho Chehab 2017-05-14 15:47:07 -03:00 committed by Jonathan Corbet
parent 66b338eabe
commit 0685552f2c
1 changed files with 27 additions and 26 deletions
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15
Documentation/isa.txt
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@ -1,5 +1,6 @@
===========
ISA Drivers
-----------
===========
The following text is adapted from the commit message of the initial
commit of the ISA bus driver authored by Rene Herman.
@ -23,7 +24,7 @@ that all device creation has been made internal as well.
The usage model this provides is nice, and has been acked from the ALSA
side by Takashi Iwai and Jaroslav Kysela. The ALSA driver module_init's
now (for oldisa-only drivers) become:
now (for oldisa-only drivers) become::
static int __init alsa_card_foo_init(void)
{
@ -47,11 +48,11 @@ parameter, indicating how many devices to create and call our methods
with.
The platform_driver callbacks are called with a platform_device param;
the isa_driver callbacks are being called with a "struct device *dev,
unsigned int id" pair directly -- with the device creation completely
the isa_driver callbacks are being called with a ``struct device *dev,
unsigned int id`` pair directly -- with the device creation completely
internal to the bus it's much cleaner to not leak isa_dev's by passing
them in at all. The id is the only thing we ever want other then the
struct device * anyways, and it makes for nicer code in the callbacks as
struct device anyways, and it makes for nicer code in the callbacks as
well.
With this additional .match() callback ISA drivers have all options. If
@ -75,7 +76,7 @@ This exports only two functions; isa_{,un}register_driver().
isa_register_driver() register's the struct device_driver, and then
loops over the passed in ndev creating devices and registering them.
This causes the bus match method to be called for them, which is:
This causes the bus match method to be called for them, which is::
int isa_bus_match(struct device *dev, struct device_driver *driver)
{
@ -102,7 +103,7 @@ well.
Then, if the the driver did not provide a .match, it matches. If it did,
the driver match() method is called to determine a match.
If it did _not_ match, dev->platform_data is reset to indicate this to
If it did **not** match, dev->platform_data is reset to indicate this to
isa_register_driver which can then unregister the device again.
If during all this, there's any error, or no devices matched at all