[linux-laptop] usb 1-1: control timeout on ep0out

[Ferran Orsola]

Hi all,

Recently I bought a USB CDMA modem  (Maxon Minmax).

I counld make this modem working undex linux, but I had a small problem 
that bother me, and I would like to know if any of you know how to fixed.

My computer is a Acer Travelmate 8000 Series with a Knoppix installed 
worrking with Kernel 2.6.9.

When I plug the modem in my laptop the syslog tell me:
laptop kernel: ehci_hcd 0000:00:1d.7: GetStatus port 1 status 001002 
POWER sig=se0  CSC
laptop kernel: hub 4-0:1.0: port 1, status 0100, change 0001, 12 Mb/s
laptop kernel: hub 4-0:1.0: debounce: port 1: total 100ms stable 100ms 
status 0x100
laptop kernel: ehci_hcd 0000:00:1d.7: GetStatus port 1 status 001803 
POWER sig=j  CSC CONNECT
laptop kernel: hub 4-0:1.0: port 1, status 0501, change 0001, 480 Mb/s
laptop kernel: hub 4-0:1.0: debounce: port 1: total 100ms stable 100ms 
status 0x501
laptop kernel: ehci_hcd 0000:00:1d.7: CTRL: TypeReq=0x2301 val=0x2 
idx=0x0 len=0 ==> -32
laptop kernel: hub 4-0:1.0: port 1 not reset yet, waiting 50ms
laptop kernel: ehci_hcd 0000:00:1d.7: port 1 full speed --> companion
laptop kernel: ehci_hcd 0000:00:1d.7: GetStatus port 1 status 003801 
POWER OWNER sig=j  CONNECT
laptop kernel: uhci_hcd 0000:00:1d.0: wakeup_hc
laptop kernel: uhci_hcd 0000:00:1d.0: port 1 portsc 0083
laptop kernel: hub 1-0:1.0: port 1, status 0101, change 0001, 12 Mb/s
laptop kernel: hub 1-0:1.0: debounce: port 1: total 100ms stable 100ms 
status 0x101
laptop kernel: uhci_hcd 0000:00:1d.0: CTRL: TypeReq=0x2301 val=0x2 
idx=0x0 len=0 ==> -32
laptop kernel: usb 1-1: new full speed USB device using address 4
laptop kernel: usb 1-1: skipped 4 descriptors after interface
laptop kernel: usb 1-1: new device strings: Mfr=1, Product=2, SerialNumber=3
laptop kernel: usb 1-1: default language 0x0409
laptop kernel: usb 1-1: Product: Qualcomm CDMA Technologies MSM
laptop kernel: usb 1-1: Manufacturer: Qualcomm, Incorporated
laptop kernel: usb 1-1: SerialNumber: Serial Number
laptop kernel: usb 1-1: hotplug
laptop kernel: usb 1-1: adding 1-1:1.0 (config #1, interface 0)
laptop kernel: usb 1-1:1.0: hotplug
laptop kernel: usbserial_generic 1-1:1.0: usb_probe_interface
laptop kernel: usbserial_generic 1-1:1.0: usb_probe_interface - got id
laptop kernel: cdc_acm 1-1:1.0: usb_probe_interface
laptop kernel: cdc_acm 1-1:1.0: usb_probe_interface - got id
laptop kernel: drivers/usb/class/cdc-acm.c: Ignoring extra header
laptop kernel: cdc_acm 1-1:1.0: ttyACM0: USB ACM device
laptop kernel: usb 1-1: adding 1-1:1.1 (config #1, interface 1)
laptop kernel: usb 1-1:1.1: hotplug

and it means the modem is created as a ttyACM0 devide. But if I wanto to 
use minicom to connect with, the modem doesn't respond. I don't know why!!!!

What I did is use kppp and go to terminal to try to uses HIYES commands. 
My sorprise was that once kpppp open terminal screen it tried to 
inicialize the modem, and after a while (30 seconds) it says: The modem 
doesn't respond, but after this moment my modem works fine.

I had a look into the syslog and I saw this new messages:
usb 1-1: control timeout on ep0out

I do not know why after this message in my syslog, I can open minicom 
and communicate with my modem (ATZ -> OK).

It happen every time I plug the modem, so at least I know how I can use 
the modem, and this is a good new, but it is also a little "bad" to have 
to spend some time using kppp to make the modem works.

Please, do you any of you why my modem works like that, or at least how 
to automatize this problem in a chat-script?

Thansk a lot,

Ferran Orsola
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