How to find platform_device entry from a kernel module
 

Folks, I have a 3.10.12 kernel and have written a character device driver as a loadable kernel module. From within this driver I want to find a particular device, an LED, that I want to blink as I operate. This LED was registered using "platform_device_reqister". What I would like to do is enumerate all of the devices registered in this manner and find the one I want, but, I have been unable to discover how to start. There is a lot of documentation on the kernel objects, but nothing I can find on how to find a particular one.
I thank any responders in advance!
Peace,
carl.

Did you mean programatically? You can make your device driver output it's major number with printk then just grep through all the devices in /dev to filter them. How are you defining "the one I want"?

Thank you, and yes, I did mean programmatically. The particular "device" is an LED, and appears in /sys/class/leds, which I was hoping to parse from my character driver without needing to search a filesystem. I know the LED's name, and the kernel module that contains the function that will set the LED intensity. That function requires a "struct classled" that I don't know how to find.

I didn't find any reference to 'struct classled' .. only struct led_classdev, could you point me at a reference ?

oops. Spelling
 

KBP, thank you, you are correct, that is struct led_classdev. This is openwrt source, leds.h, in the "...drivers/leds" directory. The inline _led_set_brightness function is called by led_set_brightness() defined in led-core.c, and THAT function is also helpfully exported, making me think someone would like me to use it!