Hello,
thanks to feske for helping.finally i implement the touch srceendriver.i let the ft5406 provide Input service,and make the nitpicker use Input service and route to ft5406_drv.then it worked.
excellent!
i used dde_linux to provide usb driver,it has hid, storage,etc.thehid can provide Input service, and nitpicker can use it. now i am going to do some work on usb serial,then the usb modem can work.i think it should be implemented in dde linux like usb hid or usb storage.and in l4android,i should use the genode_serial.c file.am i right?do you have any ideas?or have you done any work about this?
you are spot-on about enhancing dde_linux. USB serial should certainly be provided as a 'Terminal' service, which implements a fairly simple subset of the 'Uart' interface. (provided by Genode's the real UART drivers)
On the L4Linux side, you have identified the right stub driver. The 'genode_serial.c' stub driver uses the 'genode_terminal_*' function interface as backend. In the implementation of the backend (see 'ports-foc/src/lib/l4lx/genode_terminal.cc'), you will see that the backend uses a single 'Terminal' session. Maybe it would be useful to extend it with the ability to provide multiple terminal sessions according to the L4Linux configuration? So you could have multiple serial-device nodes in Linux connected to different 'Terminal' services. If you like to explore that path together, please go ahead and create a corresponding topic in our issue tracker:
https://github.com/genodelabs/genode/issues
Cheers Norman