linux-kernel - Re: [PATCH] usb-serial: option: Don't match Huawei driver CD images

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Date:	Fri, 18 Apr 2008 08:30:41 +0200
From:	Michael Karcher <karcher@...sik.fu-berlin.de>
To:	Greg KH <greg@...ah.com>
Cc:	smurf@...rf.noris.de, linux-kernel@...r.kernel.org,
	linux-usb@...r.kernel.org
Subject: Re: [PATCH] usb-serial: option: Don't match Huawei driver CD images


Am Freitag, den 18.04.2008, 08:01 +0200 schrieb Michael Karcher:
> Am Donnerstag, den 17.04.2008, 20:24 -0700 schrieb Greg KH:
> > What is this patch against?  We have a change that went into 2.6.25
> > after 2.6.25-rc9 that should make this patch not be needed.
> The patch is developed against 2.6.25-rc8 + some git patches, but I have
> forward-ported it to current git.
> 
> I *guess* you are talking about commit aad8a278 (USB: support more
> Huawei data card product IDs), as I could not find .
insert "any other patches applying to usb/usb-serial that might be
involved" before the full stop.
[...]

> > Can you try that release and verify this?
> I will try with a current git kernel without my patch and report back,
> but I will be surprised if the problem described above is gone. System
> is currently compiling.
Kernel compiled & booted. Won't work without the patch.

Relevant dmesg and lsusb -v output follows.

Regards,
  Michael Karcher

dmesg:
usb 2-1: new full speed USB device using uhci_hcd and address 2
usb 2-1: configuration #1 chosen from 1 choice
usbcore: registered new interface driver usbserial
drivers/usb/serial/usb-serial.c: USB Serial support registered for generic
usbcore: registered new interface driver usbserial_generic
drivers/usb/serial/usb-serial.c: USB Serial Driver core
drivers/usb/serial/usb-serial.c: USB Serial support registered for GSM modem (1-port)
option 2-1:1.0: GSM modem (1-port) converter detected
usb 2-1: GSM modem (1-port) converter now attached to ttyUSB0
usbcore: registered new interface driver option
drivers/usb/serial/option.c: USB Driver for GSM modems: v0.7.1
Initializing USB Mass Storage driver...
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.

lsusb -v:
Bus 002 Device 002: ID 12d1:1001 Huawei Technologies Co., Ltd. E620 USB Modem
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.10
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0        64
  idVendor           0x12d1 Huawei Technologies Co., Ltd.
  idProduct          0x1001 E620 USB Modem
  bcdDevice            0.00
  iManufacturer           1 �������������������
  iProduct                2 HUAWEI Mobile
  iSerial                 1 �������������������
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           32
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0xa0
      (Bus Powered)
      Remote Wakeup
    MaxPower              500mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass         8 Mass Storage
      bInterfaceSubClass      6 SCSI
      bInterfaceProtocol     80 Bulk (Zip)
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x83  EP 3 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x04  EP 4 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               0
Device Status:     0x0000
  (Bus Powered)



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