Commit 0ea1563b authored by Sachin Pandhare's avatar Sachin Pandhare Committed by Jonathan Corbet
Browse files

Typo correction for description in gpio document. 



Corrected Documentation/gpio/sysfs.txt for typos and wording.
typos: syfs -> sysfs, manges -> manages
wording: entry -> entries

Signed-off-by: default avatarSachin Pandhare <sachinpandhare@gmail.com>
Signed-off-by: default avatarJonathan Corbet <corbet@lwn.net>
parent 0d8c39e6

Documentation/gpio/sysfs.txt

+3 −3
Original line number Original line Diff line number Diff line
@@ -20,14 +20,14 @@ userspace GPIO can be used to determine system configuration data that 
standard kernels won't know about. And for some tasks, simple userspace

standard kernels won't know about. And for some tasks, simple userspace

GPIO drivers could be all that the system really needs.

GPIO drivers could be all that the system really needs.





DO NOT ABUSE SYFS TO CONTROL HARDWARE THAT HAS PROPER KERNEL DRIVERS.

DO NOT ABUSE SYSFS TO CONTROL HARDWARE THAT HAS PROPER KERNEL DRIVERS.

PLEASE READ THE DOCUMENT NAMED "drivers-on-gpio.txt" IN THIS DOCUMENTATION

PLEASE READ THE DOCUMENT NAMED "drivers-on-gpio.txt" IN THIS DOCUMENTATION

DIRECTORY TO AVOID REINVENTING KERNEL WHEELS IN USERSPACE. I MEAN IT.

DIRECTORY TO AVOID REINVENTING KERNEL WHEELS IN USERSPACE. I MEAN IT.

REALLY.

REALLY.





Paths in Sysfs

Paths in Sysfs

--------------

--------------

There are three kinds of entry in /sys/class/gpio:

There are three kinds of entries in /sys/class/gpio:





   -	Control interfaces used to get userspace control over GPIOs;

   -	Control interfaces used to get userspace control over GPIOs;
@@ -106,7 +106,7 @@ read-only attributes: 




    	"label" ... provided for diagnostics (not always unique)

    	"label" ... provided for diagnostics (not always unique)





    	"ngpio" ... how many GPIOs this manges (N to N + ngpio - 1)

        "ngpio" ... how many GPIOs this manages (N to N + ngpio - 1)





Board documentation should in most cases cover what GPIOs are used for

Board documentation should in most cases cover what GPIOs are used for

what purposes. However, those numbers are not always stable; GPIOs on

what purposes. However, those numbers are not always stable; GPIOs on

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