Hi Sebastian,

now i have a working debian host :)

You remember: 
(Linux target RT.PREEMPT)usb --- RNDIS --- usb <-> (linux:Host debian)

So, the next problem is: the machine connect with CDC and not with rndis

The target says:
g_ether gadget: high-speed config #1: CDC Ethernet (ECM)
g_ether gadget: init ecm
g_ether gadget: notify connect true
g_ether gadget: activate ecm
usb0: qlen 10
g_ether gadget: ecm_open
usb0: eth_start
g_ether gadget: notify connect true
g_ether gadget: notify speed 425984000

And the debian host says:
usbcore: registered new interface driver rndis_host
usb 1-1: USB disconnect, device number 2
cdc_ether 1-1:1.0: eth1: unregister 'cdc_ether' usb-0000:02:03.0-1, CDC Ethernet Device
usb 1-1: new high-speed USB device number 3 using ehci_hcd
usb 1-1: New USB device found, idVendor=1c2b, idProduct=000b
usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 1-1: Product: RNDIS/Ethernet Gadget
usb 1-1: Manufacturer: Linux 3.10.4-rt1-KTT-V1_AHB with pch_udc
cdc_ether 1-1:1.0: eth1: register 'cdc_ether' at usb-0000:02:03.0-1, CDC Ethernet Device, 00:01:84:00:08:15

And I don’t know how to configure it. 
Do you have an idea for this?


Greetings
Alex

-----Ursprüngliche Nachricht-----
Von: Sebastian Andrzej Siewior [mailto:bigeasy@linutronix.de] 
Gesendet: Donnerstag, 29. August 2013 20:58
An: Hänel-Baas, Alexander
Cc: linux-rt-users
Betreff: Re: AW: CONFIG_PREEMPT_RT_FULL an usb gadget


please keep the list in Cc.

On 08/29/2013 04:36 PM, Hänel-Baas, Alexander wrote:

Hi Sebastian,

Hi Alexander,

yes i use a x86 machine with 3.10.4-rt1 patch.
No, there is no other gadget's or usb device active.

I meant try another gadget (like storage) or rndis on a linux host where you can debug since Windows isn't that cooperative.

Now I have enabled the lock debug (I hope so), but I can't see a message that the kernel complains about something.

Yes that the point. In the debugging msg. is no difference between the working or not working situation.

I attached my kernel config's: 
Config_3.10.4_PREEMPT_FULL -> Fully preemptible
Config_3.10.4_PREEMPT_LL	-> Low-Latency

The other files are the corresponding  dmesg.
preempt_full_dmesg.txt
preempt_ll_dmesg.txt

Sorry, I have currently no time look at those, I'm on the run…

Ok, I look for another linux machine to connect:  (Traget: linux) <-> 
usb --- RNDIS --- usb <-> (linux:Host)

Good. Note that that most gadgets attach RDNIS as an additional function that means under normal circumstances Linux ignores RNDIS and goes for CDC.

Thank you for help,

Alex

Sebastian