View Single Post
Posts: 306 | Thanked: 566 times | Joined on Jan 2010 @ Romania
#948
i prepare for receiving tomatoes on my face ....
preface, facts
as i understand on n900 there is 4 usb channels the first one is otg capable and the last 3 are pure hosts. isp1707 chip is connected to first channel ( otg )
until now nothing new so concentrate to this otg controller
i read a mentor datasheet saying this controller is made with ~50.000 logical gates . this assembly may work stand alone or with help of core microprocessor like cheap soft "controllers", i don't care. some logic is inside this and kernel drivers must fit this.
if designers of this controller follow the otg specifications saying otg session ( & state machine ) start from peripheral i wonder how can force this state machine with almost generic kernel routines trying to trick this blackbox
if phy would be connected to host only port i don't have any problem, host kernel routines may fit well.
so if any hacker who attempt doing host work don't have full access to full datasheet of this controller to have a clear idea how it work, which command force host and which prerequisites are necessary we grope in the dark
my english prevent me to develop this ideas
i watched this thread and tried to help but i don't "see" anybody wonder about what is real otg controller
until now any success of host mode don't trick the specifications saying : start from peripheral mode & vbus valid ( over 4.4 V)

is host working on meego ?

Last edited by blue_led; 2010-05-24 at 20:20.
 

The Following User Says Thank You to blue_led For This Useful Post: