linux-kernel - Re: [PATCH] usb-serial: fix regression in Visor/Palm OS module for kernels >= 2.6.24

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Date:	Wed, 26 Mar 2008 20:15:57 -0400
From:	Brad Sawatzky <brad+kernel@...tter.net>
To:	Oliver Neukum <oliver@...kum.org>
Cc:	Greg Kroah-Hartman <gregkh@...e.de>, linux-kernel@...r.kernel.org,
	linux-usb@...r.kernel.org
Subject: Re: [PATCH] usb-serial: fix regression in Visor/Palm OS module for
	kernels >= 2.6.24

On Wed, 26 Mar 2008, Oliver Neukum wrote:

> Am Mittwoch, 26. März 2008 03:32:43 schrieb Brad Sawatzky:
[ . . . ]
> > I suppose it's possible that the kernel is identifying 3 bulk endpoints
> > when there should only be 2 and there is some issue with the lower level
> > endpoint probe?
> 
> Send in "lsusb -v". Are you sure all devices have 3 endpoints?

Seems to:

% sudo lsusb -v
Bus 002 Device 016: ID 091e:0004 Garmin International 
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.00
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0         8
  idVendor           0x091e Garmin International
  idProduct          0x0004 
  bcdDevice            1.00
  iManufacturer           1 Palm, Inc.
  iProduct                2 Palm Handheld
  iSerial                 5 PalmSN12345678
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           53
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0xc0
      Self Powered
    MaxPower                2mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           5
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass      0 
      bInterfaceProtocol      0 
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x01  EP 1 OUT
        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     0x82  EP 2 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     0x03  EP 3 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0020  1x 32 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x84  EP 4 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0020  1x 32 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x05  EP 5 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0020  1x 32 bytes
        bInterval               0
Device Status:     0x0001
  Self Powered

[ Trimmed out other devices ]

-- Brad
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