On Thu 2021-07-29 12:03:04, Ian Pilcher wrote: > On 7/29/21 3:54 AM, Pavel Machek wrote: > > We normally have a trigger ("block device activity") which can then > > expose parameters ("I watch for read" and "I monitor sda1"). > > > > Is there a reason normal solution can not be used? > > This big difference is that this allows different devices to drive > different LEDs. For example, my NAS has 5 drive bays, each of which > has its own activity LED. With these patches, I can create a > separate trigger for each of those LEDs and associate the drive in each > bay with the correct LED: Yes, and I'd like to have that functionality, but I believe userland API should be similar to what we do elsewhere. Marek described it in more details. Best regards, Pavel -- http://www.livejournal.com/~pavelmachek