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extcon: fix switch class porting guide (Documentation) 

- Unfinished sentence finished.
- Incorrect description on the compat-mode condition corrected.

Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
This commit is contained in:
MyungJoo Ham 2013-11-26 16:57:39 +09:00 committed by Chanwoo Choi
parent 77438610ff
commit 686fb5df12
1 changed files with 3 additions and 6 deletions
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Documentation/extcon/porting-android-switch-class
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@ -50,7 +50,7 @@ so that they are still compatible with legacy userspace processes.
Extcon's extended features for switch device drivers with
complex features usually required magic numbers in state
value of switch_dev. With extcon, such magic numbers that
support multiple cables (
support multiple cables are no more required or supported.
1. Define cable names at edev->supported_cable.
2. (Recommended) remove print_state callback.
@ -114,11 +114,8 @@ exclusive, the two cables cannot be in ATTACHED state simulteneously.
****** ABI Location
If "CONFIG_ANDROID" is enabled and "CONFIG_ANDROID_SWITCH" is
disabled, /sys/class/switch/* are created as symbolic links to
/sys/class/extcon/*. Because CONFIG_ANDROID_SWITCH creates
/sys/class/switch directory, we disable symboling linking if
CONFIG_ANDROID_SWITCH is enabled.
If "CONFIG_ANDROID" is enabled, /sys/class/switch/* are created
as symbolic links to /sys/class/extcon/*.
The two files of switch class, name and state, are provided with
extcon, too. When the multistate support (STEP 2 of CHAPTER 1.) is