diff options
Diffstat (limited to 'Documentation/gpio')
| -rw-r--r-- | Documentation/gpio/driver.txt | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/Documentation/gpio/driver.txt b/Documentation/gpio/driver.txt index 23b751a10d7b..31e0b5db55d8 100644 --- a/Documentation/gpio/driver.txt +++ b/Documentation/gpio/driver.txt @@ -124,7 +124,8 @@ symbol: * gpiochip_set_chained_irqchip(): sets up a chained irq handler for a gpio_chip from a parent IRQ and passes the struct gpio_chip* as handler data. (Notice handler data, since the irqchip data is likely used by the - parent irqchip!) This is for the chained type of chip. + parent irqchip!) This is for the chained type of chip. This is also used + to set up a nested irqchip if NULL is passed as handler. To use the helpers please keep the following in mind: |