>Hey Hi Peter, > >I hope you are doing good. > >We probably have similar usecase of yours as far as "let USB device know device >node" >is concerned. >we have a device, where HUB is connected to one of USB port, and due to lack of >control path from DT, it is always hard to maintain (manage) >2 different devices (one is USB + One Platform). > two different devices? For example? >When I looked at the mainline kernel, I realized no one is still making use of the >feature. I wanted to check with you whether you have any reference code which you >can share ? >Any driver reference would be great. > My pwrseq library patchset [1] and Rafal's USB trigger patch are example. Besides, I know some USB Ethernet driver which need it to know MAC address also use it. [1] http://www.spinics.net/lists/linux-usb/msg143700.html [2] http://www.spinics.net/lists/linux-usb/msg143862.html BRs, Peter ��.n��������+%������w��{.n�����{���)��jg��������ݢj����G�������j:+v���w�m������w�������h�����٥