[PD-dev] HID names, numbers and tables

Christian Klippel ck at mamalala.de
Wed Jul 6 19:29:51 CEST 2005


hello all,

as for the recent discussion about the [hid] object, i just have uploaded two 
pdf documents to my site:

http://mamalala.de/Hut1_11.pdf - HID Usage Tables
http://mamalala.de/HID1_11.pdf  - HID Specs

of most interrest here are the usage tables, i think.

as you can see there, there is a number of choices how single number 
(event-type) is  mapped to the hid-name. it all depends on the selected usage 
tables.

btw, i would say that it is a good idea to use the names as specified in that 
document. after all, its how that standard is defined.....

and i agree that hid is of limited use when it comes to many 
sensors/actuators. the problem is that all the data is parsed (as defined in 
the descriptors) in the hid driver of the os once, and a second time 
inside/after the [hid] object.

greetings,

chris






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