diff options
| -rw-r--r-- | drivers/gpio/TODO | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/gpio/TODO b/drivers/gpio/TODO index 3abf4805335f..b5f0a7a2e1bf 100644 --- a/drivers/gpio/TODO +++ b/drivers/gpio/TODO @@ -173,3 +173,16 @@ value back to the caller. We've now added new variants - set_rv() and set_multiple_rv() that return an integer. Let's convert all GPIO drivers treewide to use the new callbacks, remove the old ones and finally rename the new ones back to the old names. + +------------------------------------------------------------------------------- + +Extend the sysfs ABI to allow exporting lines by their HW offsets + +The need to support the sysfs GPIO class is one of the main obstacles to +removing the global GPIO numberspace from the kernel. In order to wean users +off using global numbers from user-space, extend the existing interface with +new per-gpiochip export/unexport attributes that allow to refer to GPIOs using +their hardware offsets within the chip. + +Encourage users to switch to using them and eventually remove the existing +global export/unexport attribues. |