umodem0, Cisco USB serial console, and quirks

Tue Sep 19 16:15:45 UTC 2017

On Tue, 19 Sep 2017, Hans Petter Selasky wrote:

> On 09/19/17 16:22, Mike Andrews wrote:
>> I'm trying to get the USB console of a Cisco ASA 5506-X firewall (not 
>> terribly obscure hardware) talking to FreeBSD, and having some trouble. The 
>> relevant dmesg at probe time is:
>>
>>    umodem0 on uhub7
>>    umodem0: <Cisco Cisco USB Console, class 2/0, rev 2.00/0.00, addr 3> on 
>> usbus4
>>    umodem0: data interface 1, has no CM over data, has no break
>> 
>> ...and /dev/cuaU2 is created, and I can connect to it using cu, but then 
>> nothing happens.  As in, hitting enter to get a prompt just sits there. 
>> (cuaU1 and cuaU0 are a separate two-port USB serial adapter and that one 
>> works fine, it's using uftdi instead of umodem...)
>> 
>> The "has no CM over data" looks worrying.  I attempted to add a quirk, but 
>> either it isn't working or I didn't do it right.  In /boot/loader.conf I 
>> tried:
>> 
>
> Hi,
>
> Try using usbdump to figure out what is going on.
>
> usbdump -i usbusX -f Y -s 65536 -vvv
>
> X and Y are the numbers in ugenX.Y printed in dmesg.
>
> It will dump all low level communication with the firewall. Maybe it needs 
> some special character escaping to respond, or maybe it needs to set the RTS 
> CTS bits.

OK, here's a dump while running "cu -s 9600 -l /dev/cuaU2", hitting return 
about a dozen times, and then ~. to quit.

I'm not sure how to interpret this as I'm not familiar with USB stack 
innards.  (I'm more of a tcpdump guy.)

Oh, and I suck for not mentioning that this is FreeBSD 11.1-p1 amd64.

On macOS the same cu command (for /dev/cu.usbmodem1411) works fine without 
any other magic.  I don't know where their equivalent of usbdump is, 
unless it's buried in Xcode somewhere.  I can give Ubuntu a shot too, once 
I dust that hardware off and power it up...

# usbdump -i usbus4 -f 3 -s 65536 -vvv
12:03:37.726789 usbus4.3 SUBM-CTRL-EP=00000000,SPD=FULL,NFR=1,SLEN=8,IVAL=0
  frame[0] WRITE 8 bytes
  0000  21 22 03 00 00 00 00 00  -- -- -- -- -- -- -- --  |!"......        |
  flags 0x10 <PROXY_BUFFER|0>
  status 0xee1a3 <OPEN|TRANSFERRING|STARTED|CONTROL_XFR|CONTROL_HDR|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CURR_DMA_SET|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:03:37.726815 usbus4.3 SUBM-INTR-EP=00000081,SPD=FULL,NFR=1,SLEN=0,IVAL=2
  frame[0] READ 8 bytes
  flags 0x8a <SHORT_XFER_OK|PIPE_BOF|NO_PIPE_OK|0>
  status 0xcf023 <OPEN|TRANSFERRING|STARTED|SHORT_XFER_OK|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:03:37.726830 usbus4.3 SUBM-BULK-EP=00000082,SPD=FULL,NFR=1,SLEN=0,IVAL=0
  frame[0] READ 1024 bytes
  flags 0xa <SHORT_XFER_OK|PIPE_BOF|0>
  status 0xcf023 <OPEN|TRANSFERRING|STARTED|SHORT_XFER_OK|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:03:37.729716 usbus4.3 DONE-CTRL-EP=00000000,SPD=FULL,NFR=1,SLEN=0,IVAL=0,ERR=0
  frame[0] WRITE 8 bytes
  flags 0x10 <PROXY_BUFFER|0>
  status 0xce1a1 <OPEN|STARTED|CONTROL_XFR|CONTROL_HDR|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:03:37.729785 usbus4.3 SUBM-CTRL-EP=00000000,SPD=FULL,NFR=1,SLEN=8,IVAL=0
  frame[0] WRITE 8 bytes
  0000  21 22 03 00 00 00 00 00  -- -- -- -- -- -- -- --  |!"......        |
  flags 0x10 <PROXY_BUFFER|0>
  status 0xce1a3 <OPEN|TRANSFERRING|STARTED|CONTROL_XFR|CONTROL_HDR|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:03:37.732696 usbus4.3 DONE-CTRL-EP=00000000,SPD=FULL,NFR=1,SLEN=0,IVAL=0,ERR=0
  frame[0] WRITE 8 bytes
  flags 0x10 <PROXY_BUFFER|0>
  status 0xee1a1 <OPEN|STARTED|CONTROL_XFR|CONTROL_HDR|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CURR_DMA_SET|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:03:37.732753 usbus4.3 SUBM-CTRL-EP=00000000,SPD=FULL,NFR=2,SLEN=16,IVAL=0
  frame[0] WRITE 8 bytes
  0000  21 20 00 00 00 00 07 00  -- -- -- -- -- -- -- --  |! ......        |
  frame[1] WRITE 7 bytes
  0000  80 25 00 00 00 00 08 --  -- -- -- -- -- -- -- --  |.%.....         |
  flags 0x10 <PROXY_BUFFER|0>
  status 0xee1a3 <OPEN|TRANSFERRING|STARTED|CONTROL_XFR|CONTROL_HDR|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CURR_DMA_SET|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:03:37.736700 usbus4.3 DONE-CTRL-EP=00000000,SPD=FULL,NFR=2,SLEN=0,IVAL=0,ERR=0
  frame[0] WRITE 8 bytes
  frame[1] WRITE 7 bytes
  flags 0x10 <PROXY_BUFFER|0>
  status 0xce1a1 <OPEN|STARTED|CONTROL_XFR|CONTROL_HDR|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:03:37.840679 usbus4.3 SUBM-CTRL-EP=00000000,SPD=FULL,NFR=2,SLEN=16,IVAL=0
  frame[0] WRITE 8 bytes
  0000  21 20 00 00 00 00 07 00  -- -- -- -- -- -- -- --  |! ......        |
  frame[1] WRITE 7 bytes
  0000  80 25 00 00 00 00 08 --  -- -- -- -- -- -- -- --  |.%.....         |
  flags 0x10 <PROXY_BUFFER|0>
  status 0xce1a3 <OPEN|TRANSFERRING|STARTED|CONTROL_XFR|CONTROL_HDR|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:03:37.844696 usbus4.3 DONE-CTRL-EP=00000000,SPD=FULL,NFR=2,SLEN=0,IVAL=0,ERR=0
  frame[0] WRITE 8 bytes
  frame[1] WRITE 7 bytes
  flags 0x10 <PROXY_BUFFER|0>
  status 0xee1a1 <OPEN|STARTED|CONTROL_XFR|CONTROL_HDR|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CURR_DMA_SET|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:03:47.719626 usbus4.3 SUBM-BULK-EP=00000003,SPD=FULL,NFR=1,SLEN=4,IVAL=0
  frame[0] WRITE 1 bytes
  0000  0D -- -- -- -- -- -- --  -- -- -- -- -- -- -- --  |.               |
  flags 0x9 <FORCE_SHORT_XFER|PIPE_BOF|0>
  status 0xce023 <OPEN|TRANSFERRING|STARTED|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:03:47.720517 usbus4.3 DONE-BULK-EP=00000003,SPD=FULL,NFR=1,SLEN=0,IVAL=0,ERR=0
  frame[0] WRITE 1 bytes
  flags 0x9 <FORCE_SHORT_XFER|PIPE_BOF|0>
  status 0xee021 <OPEN|STARTED|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CURR_DMA_SET|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:03:48.425798 usbus4.3 SUBM-BULK-EP=00000003,SPD=FULL,NFR=1,SLEN=4,IVAL=0
  frame[0] WRITE 1 bytes
  0000  0D -- -- -- -- -- -- --  -- -- -- -- -- -- -- --  |.               |
  flags 0x9 <FORCE_SHORT_XFER|PIPE_BOF|0>
  status 0xee023 <OPEN|TRANSFERRING|STARTED|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CURR_DMA_SET|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:03:48.426504 usbus4.3 DONE-BULK-EP=00000003,SPD=FULL,NFR=1,SLEN=0,IVAL=0,ERR=0
  frame[0] WRITE 1 bytes
  flags 0x9 <FORCE_SHORT_XFER|PIPE_BOF|0>
  status 0xce021 <OPEN|STARTED|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:03:48.959494 usbus4.3 SUBM-BULK-EP=00000003,SPD=FULL,NFR=1,SLEN=4,IVAL=0
  frame[0] WRITE 1 bytes
  0000  0D -- -- -- -- -- -- --  -- -- -- -- -- -- -- --  |.               |
  flags 0x9 <FORCE_SHORT_XFER|PIPE_BOF|0>
  status 0xce023 <OPEN|TRANSFERRING|STARTED|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:03:48.960496 usbus4.3 DONE-BULK-EP=00000003,SPD=FULL,NFR=1,SLEN=0,IVAL=0,ERR=0
  frame[0] WRITE 1 bytes
  flags 0x9 <FORCE_SHORT_XFER|PIPE_BOF|0>
  status 0xee021 <OPEN|STARTED|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CURR_DMA_SET|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:03:49.299515 usbus4.3 SUBM-BULK-EP=00000003,SPD=FULL,NFR=1,SLEN=4,IVAL=0
  frame[0] WRITE 1 bytes
  0000  0D -- -- -- -- -- -- --  -- -- -- -- -- -- -- --  |.               |
  flags 0x9 <FORCE_SHORT_XFER|PIPE_BOF|0>
  status 0xee023 <OPEN|TRANSFERRING|STARTED|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CURR_DMA_SET|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:03:49.300487 usbus4.3 DONE-BULK-EP=00000003,SPD=FULL,NFR=1,SLEN=0,IVAL=0,ERR=0
  frame[0] WRITE 1 bytes
  flags 0x9 <FORCE_SHORT_XFER|PIPE_BOF|0>
  status 0xce021 <OPEN|STARTED|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:03:49.597312 usbus4.3 SUBM-BULK-EP=00000003,SPD=FULL,NFR=1,SLEN=4,IVAL=0
  frame[0] WRITE 1 bytes
  0000  0D -- -- -- -- -- -- --  -- -- -- -- -- -- -- --  |.               |
  flags 0x9 <FORCE_SHORT_XFER|PIPE_BOF|0>
  status 0xce023 <OPEN|TRANSFERRING|STARTED|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:03:49.597483 usbus4.3 DONE-BULK-EP=00000003,SPD=FULL,NFR=1,SLEN=0,IVAL=0,ERR=0
  frame[0] WRITE 1 bytes
  flags 0x9 <FORCE_SHORT_XFER|PIPE_BOF|0>
  status 0xee021 <OPEN|STARTED|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CURR_DMA_SET|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:03:49.851622 usbus4.3 SUBM-BULK-EP=00000003,SPD=FULL,NFR=1,SLEN=4,IVAL=0
  frame[0] WRITE 1 bytes
  0000  0D -- -- -- -- -- -- --  -- -- -- -- -- -- -- --  |.               |
  flags 0x9 <FORCE_SHORT_XFER|PIPE_BOF|0>
  status 0xee023 <OPEN|TRANSFERRING|STARTED|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CURR_DMA_SET|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:03:49.852480 usbus4.3 DONE-BULK-EP=00000003,SPD=FULL,NFR=1,SLEN=0,IVAL=0,ERR=0
  frame[0] WRITE 1 bytes
  flags 0x9 <FORCE_SHORT_XFER|PIPE_BOF|0>
  status 0xce021 <OPEN|STARTED|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:03:50.096901 usbus4.3 SUBM-BULK-EP=00000003,SPD=FULL,NFR=1,SLEN=4,IVAL=0
  frame[0] WRITE 1 bytes
  0000  0D -- -- -- -- -- -- --  -- -- -- -- -- -- -- --  |.               |
  flags 0x9 <FORCE_SHORT_XFER|PIPE_BOF|0>
  status 0xce023 <OPEN|TRANSFERRING|STARTED|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:03:50.097474 usbus4.3 DONE-BULK-EP=00000003,SPD=FULL,NFR=1,SLEN=0,IVAL=0,ERR=0
  frame[0] WRITE 1 bytes
  flags 0x9 <FORCE_SHORT_XFER|PIPE_BOF|0>
  status 0xee021 <OPEN|STARTED|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CURR_DMA_SET|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:03:50.319320 usbus4.3 SUBM-BULK-EP=00000003,SPD=FULL,NFR=1,SLEN=4,IVAL=0
  frame[0] WRITE 1 bytes
  0000  0D -- -- -- -- -- -- --  -- -- -- -- -- -- -- --  |.               |
  flags 0x9 <FORCE_SHORT_XFER|PIPE_BOF|0>
  status 0xee023 <OPEN|TRANSFERRING|STARTED|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CURR_DMA_SET|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:03:50.319467 usbus4.3 DONE-BULK-EP=00000003,SPD=FULL,NFR=1,SLEN=0,IVAL=0,ERR=0
  frame[0] WRITE 1 bytes
  flags 0x9 <FORCE_SHORT_XFER|PIPE_BOF|0>
  status 0xce021 <OPEN|STARTED|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:03:50.552389 usbus4.3 SUBM-BULK-EP=00000003,SPD=FULL,NFR=1,SLEN=4,IVAL=0
  frame[0] WRITE 1 bytes
  0000  0D -- -- -- -- -- -- --  -- -- -- -- -- -- -- --  |.               |
  flags 0x9 <FORCE_SHORT_XFER|PIPE_BOF|0>
  status 0xce023 <OPEN|TRANSFERRING|STARTED|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:03:50.553461 usbus4.3 DONE-BULK-EP=00000003,SPD=FULL,NFR=1,SLEN=0,IVAL=0,ERR=0
  frame[0] WRITE 1 bytes
  flags 0x9 <FORCE_SHORT_XFER|PIPE_BOF|0>
  status 0xee021 <OPEN|STARTED|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CURR_DMA_SET|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:03:50.779360 usbus4.3 SUBM-BULK-EP=00000003,SPD=FULL,NFR=1,SLEN=4,IVAL=0
  frame[0] WRITE 1 bytes
  0000  0D -- -- -- -- -- -- --  -- -- -- -- -- -- -- --  |.               |
  flags 0x9 <FORCE_SHORT_XFER|PIPE_BOF|0>
  status 0xee023 <OPEN|TRANSFERRING|STARTED|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CURR_DMA_SET|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:03:50.780465 usbus4.3 DONE-BULK-EP=00000003,SPD=FULL,NFR=1,SLEN=0,IVAL=0,ERR=0
  frame[0] WRITE 1 bytes
  flags 0x9 <FORCE_SHORT_XFER|PIPE_BOF|0>
  status 0xce021 <OPEN|STARTED|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:03:58.786897 usbus4.3 SUBM-BULK-EP=00000003,SPD=FULL,NFR=1,SLEN=4,IVAL=0
  frame[0] WRITE 1 bytes
  0000  7E -- -- -- -- -- -- --  -- -- -- -- -- -- -- --  |~               |
  flags 0x9 <FORCE_SHORT_XFER|PIPE_BOF|0>
  status 0xce023 <OPEN|TRANSFERRING|STARTED|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:03:58.787329 usbus4.3 DONE-BULK-EP=00000003,SPD=FULL,NFR=1,SLEN=0,IVAL=0,ERR=0
  frame[0] WRITE 1 bytes
  flags 0x9 <FORCE_SHORT_XFER|PIPE_BOF|0>
  status 0xee021 <OPEN|STARTED|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CURR_DMA_SET|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:03:59.049172 usbus4.3 SUBM-BULK-EP=00000003,SPD=FULL,NFR=1,SLEN=4,IVAL=0
  frame[0] WRITE 1 bytes
  0000  2E -- -- -- -- -- -- --  -- -- -- -- -- -- -- --  |.               |
  flags 0x9 <FORCE_SHORT_XFER|PIPE_BOF|0>
  status 0xee023 <OPEN|TRANSFERRING|STARTED|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CURR_DMA_SET|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:03:59.049332 usbus4.3 DONE-BULK-EP=00000003,SPD=FULL,NFR=1,SLEN=0,IVAL=0,ERR=0
  frame[0] WRITE 1 bytes
  flags 0x9 <FORCE_SHORT_XFER|PIPE_BOF|0>
  status 0xce021 <OPEN|STARTED|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:04:00.224458 usbus4.3 SUBM-BULK-EP=00000003,SPD=FULL,NFR=1,SLEN=4,IVAL=0
  frame[0] WRITE 1 bytes
  0000  0D -- -- -- -- -- -- --  -- -- -- -- -- -- -- --  |.               |
  flags 0x9 <FORCE_SHORT_XFER|PIPE_BOF|0>
  status 0xce023 <OPEN|TRANSFERRING|STARTED|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:04:00.225314 usbus4.3 DONE-BULK-EP=00000003,SPD=FULL,NFR=1,SLEN=0,IVAL=0,ERR=0
  frame[0] WRITE 1 bytes
  flags 0x9 <FORCE_SHORT_XFER|PIPE_BOF|0>
  status 0xee021 <OPEN|STARTED|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CURR_DMA_SET|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:04:01.464189 usbus4.3 SUBM-CTRL-EP=00000000,SPD=FULL,NFR=1,SLEN=8,IVAL=0
  frame[0] WRITE 8 bytes
  0000  21 22 02 00 00 00 00 00  -- -- -- -- -- -- -- --  |!"......        |
  flags 0x10 <PROXY_BUFFER|0>
  status 0xee1a3 <OPEN|TRANSFERRING|STARTED|CONTROL_XFR|CONTROL_HDR|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CURR_DMA_SET|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:04:01.466301 usbus4.3 DONE-CTRL-EP=00000000,SPD=FULL,NFR=1,SLEN=0,IVAL=0,ERR=0
  frame[0] WRITE 8 bytes
  flags 0x10 <PROXY_BUFFER|0>
  status 0xce1a1 <OPEN|STARTED|CONTROL_XFR|CONTROL_HDR|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:04:01.466346 usbus4.3 SUBM-CTRL-EP=00000000,SPD=FULL,NFR=1,SLEN=8,IVAL=0
  frame[0] WRITE 8 bytes
  0000  21 22 02 00 00 00 00 00  -- -- -- -- -- -- -- --  |!"......        |
  flags 0x10 <PROXY_BUFFER|0>
  status 0xce1a3 <OPEN|TRANSFERRING|STARTED|CONTROL_XFR|CONTROL_HDR|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:04:01.469281 usbus4.3 DONE-CTRL-EP=00000000,SPD=FULL,NFR=1,SLEN=0,IVAL=0,ERR=0
  frame[0] WRITE 8 bytes
  flags 0x10 <PROXY_BUFFER|0>
  status 0xee1a1 <OPEN|STARTED|CONTROL_XFR|CONTROL_HDR|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CURR_DMA_SET|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
12:04:01.472549 usbus4.3 DONE-BULK-EP=00000082,SPD=FULL,NFR=0,SLEN=0,IVAL=0,ERR=CANCELLED
  flags 0xa <SHORT_XFER_OK|PIPE_BOF|0>
  status 0xaf00c <DID_DMA_DELAY|DID_CLOSE|SHORT_XFER_OK|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CURR_DMA_SET|DOING_CALLBACK|0>
12:04:01.472556 usbus4.3 DONE-INTR-EP=00000081,SPD=FULL,NFR=0,SLEN=0,IVAL=2,ERR=CANCELLED
  flags 0x8a <SHORT_XFER_OK|PIPE_BOF|NO_PIPE_OK|0>
  status 0xaf00c <DID_DMA_DELAY|DID_CLOSE|SHORT_XFER_OK|BDMA_ENABLE|BDMA_NO_POST_SYNC|BDMA_SETUP|CURR_DMA_SET|DOING_CALLBACK|0>
^C
42 packets captured
13020 packets received by filter
0 packets dropped by kernel