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From: Naveen Kumar Parna <pnaveenkos@gmail.com>
To: Alan Stern <stern@rowland.harvard.edu>
Cc: Oliver Neukum <oneukum@suse.de>,
	"linux-bluetooth@vger.kernel.org"
	<linux-bluetooth@vger.kernel.org>,
	linux-usb@vger.kernel.org, acho@suse.com
Subject: Re: btusb_intr_complete returns -EPIPE
Date: Tue, 28 Oct 2014 18:10:00 +0530	[thread overview]
Message-ID: <CAG0bkvJv0VdeKXMOg-6+LVYJU1qD5bQboJ3MNGrUY9xPNMTALw@mail.gmail.com> (raw)
In-Reply-To: <CAG0bkvKNrQqDhJK5SCqU+Pc99sR5x_Jnga1cR37ZXLZ0a5uVVQ@mail.gmail.com>

[-- Attachment #1: Type: text/plain, Size: 2485 bytes --]

>
>> You should also run a similar test when you connect the device through
>> a USB-2 hub.  In fact, you should run two tests.  In one test, connect
>> the analyzer to the cable segment between the computer and the hub; in
>> the other test, connect the analyzer to the cable segment between the
>> hub and the device.
>>
>

I connected the USB analyzer to the cable segment between the computer
and the external USB-2 hub(devices are attached to this external USB-2
hub). In this scenario , got the stall in usbmon trace, but not in
analyzer log. But USB analyzer log shows “Incomplete IN transaction”.
Please check the attached "Elisys_Usb_log.png".



Incomplete IN transaction           2              1
INCOMPLETE     HS           No data                884.626 273 217

Incomplete IN transaction           2              1
INCOMPLETE     HS           No data                884.882 309 000

Incomplete IN transaction           2              1
INCOMPLETE     HS           No data                885.138 344 750

Incomplete IN transaction           2              1
INCOMPLETE     HS           No data                885.394 380 533

Incomplete IN transaction           2              1
INCOMPLETE     HS           No data                885.650 416 300

Incomplete IN transaction           2              1
INCOMPLETE     HS           No data                885.906 452 050

Incomplete IN transaction           2              1
INCOMPLETE     HS           No data                886.162 487 833

Incomplete IN transaction           2              1
INCOMPLETE     HS           No data                886.418 523 583

Incomplete IN transaction           2              1
INCOMPLETE     HS           No data                886.674 559 367

Incomplete IN transaction           2              1
INCOMPLETE     HS           No data                886.930 595 117

Incomplete IN transaction           2              1
INCOMPLETE     HS           No data                887.186 630 883

Incomplete IN transaction           2              1
INCOMPLETE     HS           No data                887.442 666 667

Incomplete IN transaction           2              1
INCOMPLETE     HS           No data                887.698 702 417



Does it gives any clue?



For the second test(connect the analyzer to the cable segment between
the hub and the device): Is it possible with single external USB hub?

Thanks,
Naveen

[-- Attachment #2: Elisys_Usb_log.png --]
[-- Type: image/png, Size: 212397 bytes --]

  reply	other threads:[~2014-10-28 12:40 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CAG0bkvJDLP2tgnzu7H_ZCRCnZwkw1zUd1uqWwoDkmrU_FLts7w@mail.gmail.com>
2014-10-09 14:31 ` btusb_intr_complete returns -EPIPE Alan Stern
2014-10-15 10:11   ` Oliver Neukum
2014-10-15 13:09     ` Naveen Kumar Parna
2014-10-15 13:46       ` Naveen Kumar Parna
2014-10-15 16:11         ` Alan Stern
2014-10-16  7:13           ` Naveen Kumar Parna
2014-10-16 14:16             ` Alan Stern
2014-10-16 15:32               ` Naveen Kumar Parna
2014-10-28 12:40                 ` Naveen Kumar Parna [this message]
2014-10-28 17:27                   ` Alan Stern
     [not found]                     ` <CAG0bkvL-qy+Wvp7q39TOaQ1dZDd0PKyoXHjO=5TrJvdC8byr8A@mail.gmail.com>
2014-10-31 11:27                       ` Naveen Kumar Parna
2014-10-31 20:51                       ` Alan Stern
2014-10-16  9:15           ` Oliver Neukum
2014-10-16 10:54             ` Naveen Kumar Parna
2014-10-16 14:09               ` Alan Stern
2014-10-16 15:05                 ` Naveen Kumar Parna
2014-10-27  9:19                 ` Naveen Kumar Parna
     [not found] <CAG0bkv+DL0bVs9irE7eUB3rC-J16Ue=b9+_TqeuTHJYMJDkC0g@mail.gmail.com>
2014-11-06 16:44 ` Alan Stern
2014-11-10  6:38   ` Naveen Kumar Parna
2014-11-10 16:56     ` Alan Stern
2014-11-11  9:53       ` Naveen Kumar Parna
2014-11-11 15:56         ` Alan Stern
2014-11-10  9:29   ` Naveen Kumar Parna
     [not found] <CAG0bkv+YY90Tq1aTw1Dbg-RSVadoP2U6tyVpW1bZSxBfQ=3Y4g@mail.gmail.com>
2014-11-03 16:19 ` Alan Stern
2014-11-05  6:58   ` Naveen Kumar Parna
2014-11-05 21:09     ` Alan Stern
2014-10-06 12:23 Naveen Kumar Parna
  -- strict thread matches above, loose matches on Subject: below --
2014-10-06 11:35 Naveen Kumar Parna
2014-10-06 12:24 ` Oliver Neukum
     [not found]   ` <CAG0bkv+nKt-TgONDLENNUncz9NScdJGcYR+J2Z6b=wg2grvqhg@mail.gmail.com>
2014-10-06 12:55     ` Oliver Neukum
2014-10-06 13:03       ` Naveen Kumar Parna
2014-10-06 13:29         ` Oliver Neukum
2014-10-06 14:38           ` Naveen Kumar Parna
2014-10-06 14:50             ` Oliver Neukum
     [not found]               ` <CAG0bkvKJZMhurNNpc_2wgaACRzhyEikb0G0YSY7QnxqBe1rnjw@mail.gmail.com>
2014-10-07  6:44                 ` Naveen Kumar Parna
2014-10-07 10:01                   ` Oliver Neukum
2014-10-07 13:34                     ` Naveen Kumar Parna
2014-10-07 14:31                       ` Naveen Kumar Parna
2014-10-08  9:09                         ` Oliver Neukum
2014-10-08 10:21                           ` Naveen Kumar Parna
2014-10-08 10:44                             ` Oliver Neukum
2014-10-08 13:01                               ` Naveen Kumar Parna
2014-10-08 13:17                                 ` Oliver Neukum
2014-10-08 14:10                                   ` Naveen Kumar Parna
2014-10-08 14:46                                   ` Alan Stern

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