Re: Linux USB file storage gadget with new UDC

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Hi,

>> I did another usbmon capture from the moment usb cable is plugged into
>> the Ubuntu x100e laptop. This time the usbmon does not have -75 error.
>> When the SCSI_READ_10 command request for 4096 bytes of data, and the
>> data is returned by the gadget, usbmon simply shows -108 error. The
>> gadget driver log and usbmon trace are attached.
>
> Again, the -108 indicates that the host controller disabled the port.
> The usbmon trace confirms this.  I think the most common reason for
> disabling a port in this way is that the device tried to transmit a
> packet across a microframe boundary.
>
>> The FIFO size in gadget bulk out endpoint 1 is 512 bytes, so i break
>> the 4096 bytes of data into 8 chunks of 512 bytes, before returning
>> them to Ubuntu. I guess it would not be the root cause, won't it?
>
> It's hard to say without looking at the signals on the wire.  Are you
> certain the hardware really is sending 512 bytes for each chunk?
> That's why you need to use a bus analyzer -- to see what's actually
> going on.

I have an important finding. When the problem (SCSI_READ_10 command
reads 4096 bytes of data, causing gadget to reset) happens, the PC
shows that the gadget is detected as Full-speed device, but gadget
reports that it is set to High-speed from:

    g_file_storage gadget: high-speed config #1

This is printed from do_set_config() in file_storage.c. In UDC driver,
it is hardcorded to high speed in UDC driver start function. I changed
it to be set depending on hardware value. Now it is:

    g_file_storage gadget: full-speed config #1

However, in usbmon, the SCSI_READ_10 command still requests for 4096
bytes of data, and this causes gadget to reset. Please see the gadget
log, and usbmon trace, and host dmesg log.

Thanks,
Victor
[ 3427.328908] usb 1-5.2: new full speed USB device using ehci_hcd and address 7
[ 3427.421804] usb 1-5.2: not running at top speed; connect to a high speed hub
[ 3427.455274] usb-storage 1-5.2:1.0: Quirks match for vid 0525 pid a4a5: 10000
[ 3427.457117] scsi3 : usb-storage 1-5.2:1.0
[ 3428.896784] usb 1-5.2: reset full speed USB device using ehci_hcd and address 7

f33fa400 1314593130 C Ci:1:007:0 0 9 = 09022000 010104c0 01
f33fa400 1314593147 S Ci:1:007:0 s 80 06 0200 0000 0020 32 <
f33fa400 1314593752 C Ci:1:007:0 0 32 = 09022000 010104c0 01090400 00020806 50050705 81024000 00070501 02400000
f33fa400 1314593791 S Ci:1:007:0 s 80 06 0300 0000 00ff 255 <
f33fa400 1314594502 C Ci:1:007:0 0 4 = 04030904
f33fa400 1314594519 S Ci:1:007:0 s 80 06 0302 0409 00ff 255 <
f33fa400 1314595120 C Ci:1:007:0 0 54 = 36034600 69006c00 65002d00 62006100 63006b00 65006400 20005300 74006f00
f33fa400 1314595918 S Ci:1:007:0 s 80 06 0301 0409 00ff 255 <
f33fa400 1314596884 C Ci:1:007:0 0 58 = 3a034c00 69006e00 75007800 20003300 2e003400 2e003400 2b002000 77006900
f33fa400 1314597660 S Co:1:007:0 s 00 09 0001 0000 0000 0
f33fa400 1314598122 C Co:1:007:0 0 0
f33fa400 1314599768 S Ci:1:007:0 s 80 06 0304 0409 00ff 255 <
f33fa400 1314612251 C Ci:1:007:0 0 26 = 1a035300 65006c00 66002d00 70006f00 77006500 72006500 6400
f2e1ee00 1314612435 S Ci:1:007:0 s 80 06 0305 0409 00ff 255 <
f2e1ee00 1314613115 C Ci:1:007:0 0 26 = 1a034d00 61007300 73002000 53007400 6f007200 61006700 6500
f33a1380 1315254841 S Co:1:003:0 s 23 03 0016 0302 0000 0
f33a1380 1315255168 C Co:1:003:0 0 0
f2e1e400 1315646807 S Ci:1:007:0 s a1 fe 0000 0000 0001 1 <
f2e1e400 1315647355 C Ci:1:007:0 0 1 = 00
f2e1e400 1315655086 S Bo:1:007:1 -115 31 = 55534243 01000000 24000000 80000612 00000024 00000000 00000000 000000
f2e1e400 1315655351 C Bo:1:007:1 0 31 >
f2ed1a00 1315655414 S Bi:1:007:1 -115 36 <
f2ed1a00 1315657108 C Bi:1:007:1 0 36 = 00000202 1f000000 4c696e75 78202020 46696c65 2d53746f 72204761 64676574
f2e1e400 1315657185 S Bi:1:007:1 -115 13 <
f2e1e400 1315666355 C Bi:1:007:1 0 13 = 55534253 01000000 00000000 00
f2e1e400 1315708514 S Bo:1:007:1 -115 31 = 55534243 02000000 00000000 00000600 00000000 00000000 00000000 000000
f2e1e400 1315708845 C Bo:1:007:1 0 31 >
f2e1e400 1315708919 S Bi:1:007:1 -115 13 <
f2e1e400 1315718221 C Bi:1:007:1 0 13 = 55534253 02000000 00000000 01
f2e1e400 1315718323 S Bo:1:007:1 -115 31 = 55534243 03000000 12000000 80000603 00000012 00000000 00000000 000000
f2e1e400 1315718460 C Bo:1:007:1 0 31 >
f2ed1700 1315718501 S Bi:1:007:1 -115 18 <
f2ed1700 1315728467 C Bi:1:007:1 0 18 = 70000600 0000000a 00000000 29000000 0000
f2e1e400 1315728630 S Bi:1:007:1 -115 13 <
f2e1e400 1315737728 C Bi:1:007:1 0 13 = 55534253 03000000 00000000 00
f2e1e400 1315738087 S Bo:1:007:1 -115 31 = 55534243 04000000 00000000 00000600 00000000 00000000 00000000 000000
f2e1e400 1315738959 C Bo:1:007:1 0 31 >
f2e1e400 1315739098 S Bi:1:007:1 -115 13 <
f2e1e400 1315748116 C Bi:1:007:1 0 13 = 55534253 04000000 00000000 00
f2e1e400 1315748392 S Bo:1:007:1 -115 31 = 55534243 05000000 08000000 80000a25 00000000 00000000 00000000 000000
f2e1e400 1315748596 C Bo:1:007:1 0 31 >
f33faa00 1315748619 S Bi:1:007:1 -115 8 <
f33faa00 1315758231 C Bi:1:007:1 0 8 = 00759fc0 00000200
f2e1e400 1315758268 S Bi:1:007:1 -115 13 <
f2e1e400 1315801959 C Bi:1:007:1 0 13 = 55534253 05000000 00000000 00
f2e1e400 1315802220 S Bo:1:007:1 -115 31 = 55534243 06000000 c0000000 8000061a 003f00c0 00000000 00000000 000000
f2e1e400 1315802324 C Bo:1:007:1 0 31 >
f2e1ed00 1315802344 S Bi:1:007:1 -115 192 <
f2e1ed00 1315812223 C Bi:1:007:1 -121 16 = 0f000000 080a0400 ffff0000 ffffffff
f2e1e400 1315812378 S Bi:1:007:1 -115 13 <
f2e1e400 1315827704 C Bi:1:007:1 0 13 = 55534253 06000000 b0000000 00
f2e1e400 1315833528 S Bo:1:007:1 -115 31 = 55534243 07000000 00000000 00000600 00000000 00000000 00000000 000000
f2e1e400 1315834204 C Bo:1:007:1 0 31 >
f2e1e400 1315834281 S Bi:1:007:1 -115 13 <
f2e1e400 1315837968 C Bi:1:007:1 0 13 = 55534253 07000000 00000000 00
f2e1e400 1315838286 S Bo:1:007:1 -115 31 = 55534243 08000000 08000000 80000a25 00000000 00000000 00000000 000000
f2e1e400 1315838444 C Bo:1:007:1 0 31 >
f33a1380 1315838483 S Bi:1:007:1 -115 8 <
f33a1380 1315887697 C Bi:1:007:1 0 8 = 00759fc0 00000200
f2e1e400 1315888880 S Bi:1:007:1 -115 13 <
f2e1e400 1315896463 C Bi:1:007:1 0 13 = 55534253 08000000 00000000 00
f2e1e400 1315896820 S Bo:1:007:1 -115 31 = 55534243 09000000 c0000000 8000061a 003f00c0 00000000 00000000 000000
f2e1e400 1315897688 C Bo:1:007:1 0 31 >
f4060200 1315897740 S Bi:1:007:1 -115 192 <
f4060200 1315906709 C Bi:1:007:1 -121 16 = 0f000000 080a0400 ffff0000 ffffffff
f2e1e400 1315906828 S Bi:1:007:1 -115 13 <
f2eeb680 1315918815 S Co:1:003:0 s 23 03 0016 0202 0000 0
f2eeb680 1315919207 C Co:1:003:0 0 0
f2e1e400 1315922065 C Bi:1:007:1 0 13 = 55534253 09000000 b0000000 00
f2e1e400 1315925063 S Bo:1:007:1 -115 31 = 55534243 0a000000 00100000 80000a28 00000000 00000008 00000000 000000
f2e1e400 1315925563 C Bo:1:007:1 0 31 >
f2eebb00 1315925925 S Bi:1:007:1 -115 4096 <
f2eebb00 1315978979 C Bi:1:007:1 -32 0
f2e1e400 1315979685 S Co:1:007:0 s 02 01 0000 0081 0000 0
f2e1e400 1315992067 C Co:1:007:0 -71 0
f33b9200 1315992101 S Co:1:003:0 s 23 08 0070 0001 0000 0
f33b9200 1315992424 C Co:1:003:0 0 0
f33b9200 1315994895 S Co:1:003:0 s 23 03 0004 0002 0000 0
f33b9200 1315995425 C Co:1:003:0 0 0
f337cf00 1316010794 S Ci:1:003:0 s a3 00 0000 0002 0004 4 <
f337cf00 1316011925 C Ci:1:003:0 0 4 = 03111200
f2ed1080 1316066927 S Co:1:003:0 s 23 01 0014 0002 0000 0
f2ed1080 1316067422 C Co:1:003:0 0 0
f2ed1080 1316067527 S Ci:1:000:0 s 80 06 0100 0000 0040 64 <
f2ed1080 1316068166 C Ci:1:000:0 0 18 = 12010002 00000040 2505a5a4 33030102 0001
f2ed1080 1316068224 S Co:1:003:0 s 23 03 0004 0002 0000 0
f2ed1080 1316068539 C Co:1:003:0 0 0
f2ed1f00 1316082885 S Ci:1:003:0 s a3 00 0000 0002 0004 4 <
f2ed1f00 1316083544 C Ci:1:003:0 0 4 = 03111200
f33fa680 1316138791 S Co:1:003:0 s 23 01 0014 0002 0000 0
f33fa680 1316139790 C Co:1:003:0 0 0
f33fa680 1316139892 S Co:1:000:0 s 00 05 0007 0000 0000 0
f33fa680 1316140027 C Co:1:000:0 0 0
f3369680 1316156865 C Ii:1:003:1 0:2048 1 = 04
f3369680 1316156882 S Ii:1:003:1 -115:2048 1 <
f33faa80 1316158783 S Ci:1:007:0 s 80 06 0100 0000 0012 18 <
f33faa80 1316160165 C Ci:1:007:0 0 18 = 12010002 00000040 2505a5a4 33030102 0001
f33faa80 1316160223 S Ci:1:007:0 s 80 06 0200 0000 0020 32 <
f33faa80 1316160913 C Ci:1:007:0 0 32 = 09022000 010104c0 01090400 00020806 50050705 81024000 00070501 02400000
f33faa80 1316160933 S Co:1:007:0 s 00 09 0001 0000 0000 0
f33faa80 1316161162 C Co:1:007:0 0 0
f2e1e400 1316161235 S Bo:1:007:1 -115 31 = 55534243 0b000000 00100000 80000a28 00000000 00000008 00000000 000000
f2e1e400 1316161407 C Bo:1:007:1 0 31 >
f33faa80 1316161426 S Bi:1:007:1 -115 4096 <
f33faa80 1316176283 C Bi:1:007:1 -121 0
f2e1e400 1316178172 S Bi:1:007:1 -115 13 <
f2e1e400 1316233025 C Bi:1:007:1 0 13 = 55534253 0b000000 00100000 01
f2e1e400 1316233160 S Bo:1:007:1 -115 31 = 55534243 0c000000 12000000 80000603 00000012 00000000 00000000 000000
f2e1e400 1316233264 C Bo:1:007:1 0 31 >
f33a1c00 1316233284 S Bi:1:007:1 -115 18 <
f33a1c00 1316243401 C Bi:1:007:1 0 18 = 70000600 0000000a 00000000 29000000 0000
f2e1e400 1316243546 S Bi:1:007:1 -115 13 <
f2e1e400 1316252647 C Bi:1:007:1 0 13 = 55534253 0c000000 00000000 00
f2e1e400 1316252795 S Bo:1:007:1 -115 31 = 55534243 0d000000 00100000 80000a28 00000000 00000008 00000000 000000
f2e1e400 1316252886 C Bo:1:007:1 0 31 >
f33a1100 1316252906 S Bi:1:007:1 -115 4096 <
f33a1100 1316265516 C Bi:1:007:1 -121 141 = eb58904d 53444f53 352e3000 02085005 02000000 00f80000 3f00ff00 3f000000
f2e1e400 1316267194 S Bi:1:007:1 -115 13 <

g_file_storage gadget: disconnect or port reset
handle_exception begin
handle_exception wait until
handle_exception old_state 5
g_file_storage gadget: in handle_exception loop
g_file_storage gadget: in fsg->running loop
g_file_storage gadget: ep0-setup, length 8:
00000000: 80 06 00 01 00 00 40 00
g_file_storage gadget: get device descriptor
ept0 in queue len 0x12, buffer 0xc128f800
ep0_complete
g_file_storage gadget: ep0-in, length 18:
00000000: 12 01 00 02 00 00 00 40 25 05 a5 a4 33 03 01 02
00000010: 00 01
g_file_storage gadget: disconnect or port reset
handle_exception begin
handle_exception wait until
handle_exception old_state 5
g_file_storage gadget: in handle_exception loop
g_file_storage gadget: in fsg->running loop
USB_RECIP_DEVICE
fa is 0x7
exit A
g_file_storage gadget: ep0-setup, length 8:
00000000: 80 06 00 01 00 00 12 00
g_file_storage gadget: get device descriptor
ept0 in queue len 0x12, buffer 0xc128f800
ep0_complete
g_file_storage gadget: ep0-in, length 18:
00000000: 12 01 00 02 00 00 00 40 25 05 a5 a4 33 03 01 02
00000010: 00 01
g_file_storage gadget: ep0-setup, length 8:
00000000: 80 06 00 06 00 00 0a 00
g_file_storage gadget: get device qualifier
ept0 in queue len 0xa, buffer 0xc128f800
ep0_complete
g_file_storage gadget: ep0-in, length 10:
00000000: 0a 06 00 02 00 00 00 40 01 00
g_file_storage gadget: ep0-setup, length 8:
00000000: 80 06 00 02 00 00 09 00
g_file_storage gadget: get configuration descriptor
ept0 in queue len 0x9, buffer 0xc128f800
ep0_complete
g_file_storage gadget: ep0-in, length 9:
00000000: 09 02 20 00 01 01 04 c0 01
g_file_storage gadget: ep0-setup, length 8:
00000000: 80 06 00 02 00 00 20 00
g_file_storage gadget: get configuration descriptor
ept0 in queue len 0x20, buffer 0xc128f800
ep0_complete
g_file_storage gadget: ep0-in, length 32:
00000000: 09 02 20 00 01 01 04 c0 01 09 04 00 00 02 08 06
00000010: 50 05 07 05 81 02 40 00 00 07 05 01 02 40 00 00
g_file_storage gadget: ep0-setup, length 8:
00000000: 80 06 00 03 00 00 ff 00
g_file_storage gadget: get string descriptor
ept0 in queue len 0x4, buffer 0xc128f800
ep0_complete
g_file_storage gadget: ep0-in, length 4:
00000000: 04 03 09 04
g_file_storage gadget: ep0-setup, length 8:
00000000: 80 06 02 03 09 04 ff 00
g_file_storage gadget: get string descriptor
ept0 in queue len 0x36, buffer 0xc128f800
ep0_complete
g_file_storage gadget: ep0-in, length 54:
00000000: 36 03 46 00 69 00 6c 00 65 00 2d 00 62 00 61 00
00000010: 63 00 6b 00 65 00 64 00 20 00 53 00 74 00 6f 00
00000020: 72 00 61 00 67 00 65 00 20 00 47 00 61 00 64 00
00000030: 67 00 65 00 74 00
g_file_storage gadget: ep0-setup, length 8:
00000000: 80 06 01 03 09 04 ff 00
g_file_storage gadget: get string descriptor
ept0 in queue len 0x3a, buffer 0xc128f800
ep0_complete
g_file_storage gadget: ep0-in, length 58:
00000000: 3a 03 4c 00 69 00 6e 00 75 00 78 00 20 00 33 00
00000010: 2e 00 34 00 2e 00 34 00 2b 00 20 00 77 00 69 00
00000020: 74 00 68 00 20 00 6b 00 61 00 67 00 65 00 6e 00
00000030: 32 00 5f 00 75 00 73 00 62 00
g_file_storage gadget: ep0-setup, length 8:
00000000: 00 09 01 00 00 00 00 00
g_file_storage gadget: set configuration
handle_exception begin
handle_exception wait until
handle_exception old_state 4
g_file_storage gadget: set interface 0
g_file_storage gadget: full-speed config #1
g_file_storage gadget: ep0-setup, length 8:
00000000: 80 06 04 03 09 04 ff 00
g_file_storage gadget: get string descriptor
ept0 in queue len 0x1a, buffer 0xc128f800
ep0_complete
g_file_storage gadget: ep0-in, length 26:
00000000: 1a 03 53 00 65 00 6c 00 66 00 2d 00 70 00 6f 00
00000010: 77 00 65 00 72 00 65 00 64 00
g_file_storage gadget: ep0-setup, length 8:
00000000: 80 06 05 03 09 04 ff 00
g_file_storage gadget: get string descriptor
ept0 in queue len 0x1a, buffer 0xc128f800
ep0_complete
g_file_storage gadget: ep0-in, length 26:
00000000: 1a 03 4d 00 61 00 73 00 73 00 20 00 53 00 74 00
00000010: 6f 00 72 00 61 00 67 00 65 00
g_file_storage gadget: in handle_exception loop
[start_transfer] e5d4e03c e1828718
ept1 out queue len 0x40, buffer 0xc1340000
before kagen2_ep_queue
g_file_storage gadget: ep0-setup, length 8:
00000000: a1 fe 00 00 00 00 01 00
g_file_storage gadget: get max LUN
ept0 in queue len 0x1, buffer 0xc128f800
ep0_complete
g_file_storage gadget: ep0-in, length 1:
00000000: 00
EP1 OUT IRQ 0x28
after kagen2_ep_queue
kagen2_ep_queue 31 64 31
[kagen2_ep_queue] 43425355 1
g_file_storage gadget: bulk-out, length 31:
00000000: 55 53 42 43 01 00 00 00 24 00 00 00 80 00 06 12
00000010: 00 00 00 24 00 00 00 00 00 00 00 00 00 00 00
g_file_storage gadget: SCSI command: INQUIRY;  Dc=6, Di=36;  Hc=6, Hi=36
g_file_storage gadget: bulk-in, length 36:
00000000: 00 00 02 02 1f 00 00 00 4c 69 6e 75 78 20 20 20
00000010: 46 69 6c 65 2d 53 74 6f 72 20 47 61 64 67 65 74
00000020: 30 33 33 33
[start_transfer] 2020000 1f
ept1 in queue len 0x24, buffer 0xc1340000
0: 0x2020000
4: 0x1f
8: 0x756e694c
c: 0x20202078
bulk_in_complete --> 0, 36/36
g_file_storage gadget: before calling send_status
g_file_storage gadget: bulk-in, length 13:
00000000: 55 53 42 53 01 00 00 00 00 00 00 00 00
[start_transfer] 53425355 1
ept1 in queue len 0xd, buffer 0xc12a0000
0: 0x53425355
4: 0x1
8: 0x0
bulk_in_complete --> 0, 13/13
EP1 OUT IRQ 0x28
[start_transfer] 2020000 1f
ept1 out queue len 0x40, buffer 0xc1340000
before kagen2_ep_queue
after kagen2_ep_queue
kagen2_ep_queue 31 64 31
[kagen2_ep_queue] 43425355 2
g_file_storage gadget: bulk-out, length 31:
00000000: 55 53 42 43 02 00 00 00 00 00 00 00 00 00 06 00
00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
g_file_storage gadget: SCSI command: TEST UNIT READY;  Dc=6, Dn=0;  Hc=6, Hn=0
attention condition
g_file_storage gadget: before calling send_status
g_file_storage gadget: sending command-failure status
g_file_storage gadget:   sense data: SK x06, ASC x29, ASCQ x00;  info x0
g_file_storage gadget: bulk-in, length 13:
00000000: 55 53 42 53 02 00 00 00 00 00 00 00 01
[start_transfer] 53425355 2
ept1 in queue len 0xd, buffer 0xc1340000
0: 0x53425355
4: 0x2
8: 0x0
bulk_in_complete --> 0, 13/13
[start_transfer] 53425355 1
ept1 out queue len 0x40, buffer 0xc12a0000
before kagen2_ep_queue
after kagen2_ep_queue
kagen2_ep_queue 31 64 31
[kagen2_ep_queue] 43425355 3
g_file_storage gadget: bulk-out, length 31:
00000000: 55 53 42 43 03 00 00 00 12 00 00 00 80 00 06 03
00000010: 00 00 00 12 00 00 00 00 00 00 00 00 00 00 00
g_file_storage gadget: SCSI command: REQUEST SENSE;  Dc=6, Di=18;  Hc=6, Hi=18
g_file_storage gadget: bulk-in, length 18:
00000000: 70 00 06 00 00 00 00 0a 00 00 00 00 29 00 00 00
00000010: 00 00
[start_transfer] 60070 a000000
ept1 in queue len 0x12, buffer 0xc12a0000
0: 0x60070
4: 0xa000000
8: 0x0
c: 0x29
bulk_in_complete --> 0, 18/18
g_file_storage gadget: before calling send_status
g_file_storage gadget: bulk-in, length 13:
00000000: 55 53 42 53 03 00 00 00 00 00 00 00 00
[start_transfer] 53425355 3
ept1 in queue len 0xd, buffer 0xc1340000
0: 0x53425355
4: 0x3
8: 0x0
bulk_in_complete --> 0, 13/13
[start_transfer] 60070 a000000
ept1 out queue len 0x40, buffer 0xc12a0000
before kagen2_ep_queue
after kagen2_ep_queue
kagen2_ep_queue 31 64 31
[kagen2_ep_queue] 43425355 4
g_file_storage gadget: bulk-out, length 31:
00000000: 55 53 42 43 04 00 00 00 00 00 00 00 00 00 06 00
00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
g_file_storage gadget: SCSI command: TEST UNIT READY;  Dc=6, Dn=0;  Hc=6, Hn=0
g_file_storage gadget: before calling send_status
g_file_storage gadget: bulk-in, length 13:
00000000: 55 53 42 53 04 00 00 00 00 00 00 00 00
[start_transfer] 53425355 4
ept1 in queue len 0xd, buffer 0xc12a0000
0: 0x53425355
4: 0x4
8: 0x0
bulk_in_complete --> 0, 13/13
[start_transfer] 53425355 3
ept1 out queue len 0x40, buffer 0xc1340000
before kagen2_ep_queue
after kagen2_ep_queue
kagen2_ep_queue 31 64 31
[kagen2_ep_queue] 43425355 5
g_file_storage gadget: bulk-out, length 31:
00000000: 55 53 42 43 05 00 00 00 08 00 00 00 80 00 0a 25
00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
g_file_storage gadget: SCSI command: READ CAPACITY;  Dc=10, Di=8;  Hc=10, Hi=8
g_file_storage gadget: bulk-in, length 8:
00000000: 00 75 9f c0 00 00 02 00
[start_transfer] c09f7500 20000
ept1 in queue len 0x8, buffer 0xc1340000
0: 0xc09f7500
4: 0x20000
bulk_in_complete --> 0, 8/8
g_file_storage gadget: before calling send_status
g_file_storage gadget: bulk-in, length 13:
00000000: 55 53 42 53 05 00 00 00 00 00 00 00 00
[start_transfer] 53425355 5
ept1 in queue len 0xd, buffer 0xc12a0000
0: 0x53425355
4: 0x5
8: 0x0
bulk_in_complete --> 0, 13/13
[start_transfer] c09f7500 20000
ept1 out queue len 0x40, buffer 0xc1340000
before kagen2_ep_queue
after kagen2_ep_queue
kagen2_ep_queue 31 64 31
[kagen2_ep_queue] 43425355 6
g_file_storage gadget: bulk-out, length 31:
00000000: 55 53 42 43 06 00 00 00 c0 00 00 00 80 00 06 1a
00000010: 00 3f 00 c0 00 00 00 00 00 00 00 00 00 00 00
g_file_storage gadget: SCSI command: MODE SENSE(6);  Dc=6, Di=192;  Hc=6, Hi=192
g_file_storage gadget: bulk-in, length 16:
00000000: 0f 00 00 00 08 0a 04 00 ff ff 00 00 ff ff ff ff
[start_transfer] f 40a08
ept1 in queue len 0x10, buffer 0xc1340000
0: 0xf
4: 0x40a08
8: 0xffff
c: 0xffffffff
bulk_in_complete --> 0, 16/16
g_file_storage gadget: bulk-in set halt
kagen2_set_halt 1 1
g_file_storage gadget: before calling send_status
g_file_storage gadget: bulk-in, length 13:
00000000: 55 53 42 53 06 00 00 00 b0 00 00 00 00
[start_transfer] 53425355 6
ept1 in queue len 0xd, buffer 0xc12a0000
0: 0x53425355
4: 0x6
8: 0xb0
bulk_in_complete --> 0, 13/13
[start_transfer] f 40a08
ept1 out queue len 0x40, buffer 0xc1340000
before kagen2_ep_queue
after kagen2_ep_queue
kagen2_ep_queue 31 64 31
[kagen2_ep_queue] 43425355 7
g_file_storage gadget: bulk-out, length 31:
00000000: 55 53 42 43 07 00 00 00 00 00 00 00 00 00 06 00
00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
g_file_storage gadget: SCSI command: TEST UNIT READY;  Dc=6, Dn=0;  Hc=6, Hn=0
g_file_storage gadget: before calling send_status
g_file_storage gadget: bulk-in, length 13:
00000000: 55 53 42 53 07 00 00 00 00 00 00 00 00
[start_transfer] 53425355 7
ept1 in queue len 0xd, buffer 0xc1340000
0: 0x53425355
4: 0x7
8: 0x0
bulk_in_complete --> 0, 13/13
[start_transfer] 53425355 6
ept1 out queue len 0x40, buffer 0xc12a0000
before kagen2_ep_queue
after kagen2_ep_queue
kagen2_ep_queue 31 64 31
[kagen2_ep_queue] 43425355 8
g_file_storage gadget: bulk-out, length 31:
00000000: 55 53 42 43 08 00 00 00 08 00 00 00 80 00 0a 25
00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
g_file_storage gadget: SCSI command: READ CAPACITY;  Dc=10, Di=8;  Hc=10, Hi=8
g_file_storage gadget: bulk-in, length 8:
00000000: 00 75 9f c0 00 00 02 00
[start_transfer] c09f7500 20000
ept1 in queue len 0x8, buffer 0xc12a0000
0: 0xc09f7500
4: 0x20000
bulk_in_complete --> 0, 8/8
g_file_storage gadget: before calling send_status
g_file_storage gadget: bulk-in, length 13:
00000000: 55 53 42 53 08 00 00 00 00 00 00 00 00
[start_transfer] 53425355 8
ept1 in queue len 0xd, buffer 0xc1340000
0: 0x53425355
4: 0x8
8: 0x0
bulk_in_complete --> 0, 13/13
[start_transfer] c09f7500 20000
ept1 out queue len 0x40, buffer 0xc12a0000
before kagen2_ep_queue
after kagen2_ep_queue
kagen2_ep_queue 31 64 31
[kagen2_ep_queue] 43425355 9
g_file_storage gadget: bulk-out, length 31:
00000000: 55 53 42 43 09 00 00 00 c0 00 00 00 80 00 06 1a
00000010: 00 3f 00 c0 00 00 00 00 00 00 00 00 00 00 00
g_file_storage gadget: SCSI command: MODE SENSE(6);  Dc=6, Di=192;  Hc=6, Hi=192
g_file_storage gadget: bulk-in, length 16:
00000000: 0f 00 00 00 08 0a 04 00 ff ff 00 00 ff ff ff ff
[start_transfer] f 40a08
ept1 in queue len 0x10, buffer 0xc12a0000
0: 0xf
4: 0x40a08
8: 0xffff
c: 0xffffffff
bulk_in_complete --> 0, 16/16
g_file_storage gadget: bulk-in set halt
kagen2_set_halt 1 1
g_file_storage gadget: before calling send_status
g_file_storage gadget: bulk-in, length 13:
00000000: 55 53 42 53 09 00 00 00 b0 00 00 00 00
[start_transfer] 53425355 9
ept1 in queue len 0xd, buffer 0xc1340000
0: 0x53425355
4: 0x9
8: 0xb0
bulk_in_complete --> 0, 13/13
[start_transfer] f 40a08
ept1 out queue len 0x40, buffer 0xc12a0000
before kagen2_ep_queue
after kagen2_ep_queue
kagen2_ep_queue 31 64 31
[kagen2_ep_queue] 43425355 a
g_file_storage gadget: bulk-out, length 31:
00000000: 55 53 42 43 0a 00 00 00 00 10 00 00 80 00 0a 28
00000010: 00 00 00 00 00 00 00 08 00 00 00 00 00 00 00
g_file_storage gadget: SCSI command: READ(10);  Dc=10, Di=4096;  Hc=10, Hi=4096
g_file_storage gadget-lun0: file read 4096 @ 0 -> 4096
[start_transfer] 4d9058eb 534f4453
ept1 in queue len 0x1000, buffer 0xc12a0000
len_num 4096, iter_num 0
0: 0x4d9058eb 
4: 0x534f4453 
8: 0x302e35 
c: 0x5500802 
len_num 3584, iter_num 1
0: 0x41615252 
4: 0x0 
8: 0x0 
c: 0x0 
len_num 3072, iter_num 2
0: 0x0 
4: 0x0 
8: 0x0 
c: 0x0 
len_num 2560, iter_num 3
0: 0x0 
4: 0x0 
8: 0x0 
c: 0x0 
len_num 2048, iter_num 4
0: 0x0 
4: 0x0 
8: 0x0 
c: 0x0 
len_num 1536, iter_num 5
0: 0x0 
4: 0x0 
8: 0x0 
c: 0x0 
len_num 1024, iter_num 6
0: 0x4d9058eb 
4: 0x534f4453 
8: 0x302e35 
c: 0x5500802 
len_num 512, iter_num 7
0: 0x41615252 
4: 0x0 
8: 0x0 
c: 0x0 bulk_in_complete --> 0, 4096/4096
g_file_storage gadget: before calling send_status
g_file_storage gadget: bulk-in, length 13:
00000000: 55 53 42 53 0a 00 00 00 00 00 00 00 00
[start_transfer] 53425355 a
ept1 in queue len 0xd, buffer 0xc1340000
0: 0x53425355
4: 0xa
8: 0x0
bulk_in_complete --> 0, 13/13
[start_transfer] 4d9058eb 534f4453
ept1 out queue len 0x40, buffer 0xc12a0000
before kagen2_ep_queue
g_file_storage gadget: disconnect or port reset
after kagen2_ep_queue
kagen2_ep_queue 31 64 31
[kagen2_ep_queue] 43425355 a
g_file_storage gadget: bulk-out, length 31:
00000000: 55 53 42 43 0a 00 00 00 00 10 00 00 80 00 0a 28
00000010: 00 00 00 00 00 00 00 08 00 00 00 00 00 00 00
g_file_storage gadget: SCSI command: READ(10);  Dc=10, Di=4096;  Hc=10, Hi=4096
g_file_storage gadget-lun0: file read 4096 @ 0 -> 4096
g_file_storage gadget: after calling do_scsi_command
handle_exception begin
handle_exception wait until
handle_exception old_state 5
g_file_storage gadget: reset config
g_file_storage gadget: reset interface
g_file_storage gadget: in handle_exception loop
g_file_storage gadget: in fsg->running loop
g_file_storage gadget: in fsg->running loop
g_file_storage gadget: ep0-setup, length 8:
00000000: 80 06 00 01 00 00 40 00
g_file_storage gadget: get device descriptor
ept0 in queue len 0x12, buffer 0xc128f800
ep0_complete
g_file_storage gadget: ep0-in, length 18:
00000000: 12 01 00 02 00 00 00 40 25 05 a5 a4 33 03 01 02
00000010: 00 01
g_file_storage gadget: disconnect or port reset
handle_exception begin
handle_exception wait until
handle_exception old_state 5
g_file_storage gadget: in handle_exception loop
g_file_storage gadget: in fsg->running loop
USB_RECIP_DEVICE
fa is 0x7
exit A
g_file_storage gadget: ep0-setup, length 8:
00000000: 80 06 00 01 00 00 12 00
g_file_storage gadget: get device descriptor
ept0 in queue len 0x12, buffer 0xc128f800
ep0_complete
g_file_storage gadget: ep0-in, length 18:
00000000: 12 01 00 02 00 00 00 40 25 05 a5 a4 33 03 01 02
00000010: 00 01
g_file_storage gadget: ep0-setup, length 8:
00000000: 80 06 00 02 00 00 20 00
g_file_storage gadget: get configuration descriptor
ept0 in queue len 0x20, buffer 0xc128f800
ep0_complete
g_file_storage gadget: ep0-in, length 32:
00000000: 09 02 20 00 01 01 04 c0 01 09 04 00 00 02 08 06
00000010: 50 05 07 05 81 02 40 00 00 07 05 01 02 40 00 00
g_file_storage gadget: ep0-setup, length 8:
00000000: 00 09 01 00 00 00 00 00
g_file_storage gadget: set configuration
handle_exception begin
handle_exception wait until
handle_exception old_state 4
g_file_storage gadget: set interface 0
g_file_storage gadget: full-speed config #1
ept0 in queue len 0x0, buffer 0xc128f800
g_file_storage gadget: in handle_exception loop
[start_transfer] 53425355 a
ept1 out queue len 0x40, buffer 0xc1340000
before kagen2_ep_queue
after kagen2_ep_queue
kagen2_ep_queue 31 64 31
[kagen2_ep_queue] 43425355 b
g_file_storage gadget: bulk-out, length 31:
00000000: 55 53 42 43 0b 00 00 00 00 10 00 00 80 00 0a 28
00000010: 00 00 00 00 00 00 00 08 00 00 00 00 00 00 00
g_file_storage gadget: SCSI command: READ(10);  Dc=10, Di=4096;  Hc=10, Hi=4096
attention condition
g_file_storage gadget: bulk-in, length 0:
[start_transfer] 43425355 b
ept1 in queue len 0x0, buffer 0xc1340000
bulk_in_complete --> 0, 0/0
g_file_storage gadget: bulk-in set halt
kagen2_set_halt 1 1
g_file_storage gadget: before calling send_status
g_file_storage gadget: sending command-failure status
g_file_storage gadget:   sense data: SK x06, ASC x29, ASCQ x00;  info x0
g_file_storage gadget: bulk-in, length 13:
00000000: 55 53 42 53 0b 00 00 00 00 10 00 00 01
[start_transfer] 53425355 b
ept1 in queue len 0xd, buffer 0xc12a0000
0: 0x53425355
4: 0xb
8: 0x1000
bulk_in_complete --> 0, 13/13
[start_transfer] 43425355 b
ept1 out queue len 0x40, buffer 0xc1340000
before kagen2_ep_queue
after kagen2_ep_queue
kagen2_ep_queue 31 64 31
[kagen2_ep_queue] 43425355 c
g_file_storage gadget: bulk-out, length 31:
00000000: 55 53 42 43 0c 00 00 00 12 00 00 00 80 00 06 03
00000010: 00 00 00 12 00 00 00 00 00 00 00 00 00 00 00
g_file_storage gadget: SCSI command: REQUEST SENSE;  Dc=6, Di=18;  Hc=6, Hi=18
g_file_storage gadget: bulk-in, length 18:
00000000: 70 00 06 00 00 00 00 0a 00 00 00 00 29 00 00 00
00000010: 00 00
[start_transfer] 60070 a000000
ept1 in queue len 0x12, buffer 0xc1340000
0: 0x60070
4: 0xa000000
8: 0x0
c: 0x29
bulk_in_complete --> 0, 18/18
g_file_storage gadget: before calling send_status
g_file_storage gadget: bulk-in, length 13:
00000000: 55 53 42 53 0c 00 00 00 00 00 00 00 00
[start_transfer] 53425355 c
ept1 in queue len 0xd, buffer 0xc12a0000
0: 0x53425355
4: 0xc
8: 0x0
bulk_in_complete --> 0, 13/13
[start_transfer] 60070 a000000
ept1 out queue len 0x40, buffer 0xc1340000
before kagen2_ep_queue
after kagen2_ep_queue
kagen2_ep_queue 31 64 31
[kagen2_ep_queue] 43425355 d
g_file_storage gadget: bulk-out, length 31:
00000000: 55 53 42 43 0d 00 00 00 00 10 00 00 80 00 0a 28
00000010: 00 00 00 00 00 00 00 08 00 00 00 00 00 00 00
g_file_storage gadget: SCSI command: READ(10);  Dc=10, Di=4096;  Hc=10, Hi=4096
g_file_storage gadget-lun0: file read 4096 @ 0 -> 4096
[start_transfer] 4d9058eb 534f4453
ept1 in queue len 0x1000, buffer 0xc1340000
len_num 4096, iter_num 0
0: 0x4d9058eb 
4: 0x534f4453 
8: 0x302e35 
c: 0x5500802 
len_num 3584, iter_num 1
0: 0x41615252 
4: 0x0 
8: 0x0 
c: 0x0 
len_num 3072, iter_num 2
0: 0x0 
4: 0x0 
8: 0x0 
c: 0x0 
len_num 2560, iter_num 3
0: 0x0 
4: 0x0 
8: 0x0 
c: 0x0 
len_num 2048, iter_num 4
0: 0x0 
4: 0x0 
8: 0x0 
c: 0x0 
len_num 1536, iter_num 5
0: 0x0 
4: 0x0 
8: 0x0 
c: 0x0 
len_num 1024, iter_num 6
0: 0x4d9058eb 
4: 0x534f4453 
8: 0x302e35 
c: 0x5500802 
len_num 512, iter_num 7
0: 0x41615252 
4: 0x0 
8: 0x0 
c: 0x0 bulk_in_complete --> 0, 4096/4096
g_file_storage gadget: before calling send_status
g_file_storage gadget: bulk-in, length 13:
00000000: 55 53 42 53 0d 00 00 00 00 00 00 00 00
[start_transfer] 53425355 d
ept1 in queue len 0xd, buffer 0xc12a0000
0: 0x53425355
4: 0xd
8: 0x0
bulk_in_complete --> 0, 13/13
[start_transfer] 4d9058eb 534f4453
ept1 out queue len 0x40, buffer 0xc1340000
before kagen2_ep_queue
# 

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