On Mon, 10 Jan 2005, Vladimir Trukhin wrote:
> Here is the debugging log of Windows XP session when the driver was
> started without 'removable' option, i.e.:
>
> # insmod g_file_storage.ko file=storage
>
> Connection was never established.
> Due to restricted kernel buffer size I started dmesg command in pauses
> between reset messages.
>
> Also I added timestamp output in dump_msg() and do_set_config()
> functions using do_gettimeofday() the way like that:
>
> {
> struct timeval tv;
>
> do_gettimeofday(&tv);
> INFO(fsg, "%s speed config #%d (%d.%d)\n", speed, fsg->config,
> tv.tv_sec, tv.tv_usec);
> }
>
> ---------------------------------------------------------------------
> ****************************
> Started g_file_storage.ko
> ****************************
> ****************************
> # dmesg -c -s 500000
> ****************************
<...>
> g_file_storage gadget: bulk-out, length 31 (time: 251.511564 s):
> 0: 55 53 42 43 08 30 c3 81 fc 00 00 00 80 00 0a 23
> 10: 00 00 00 00 00 00 00 fc 00 00 00 00 00 00 00
> g_file_storage gadget: SCSI command: READ FORMAT CAPACITIES; Dc=10, Di=252;
> Hc=10, Hi=252
> g_file_storage gadget: bulk-in, length 0 (time: 251.511727 s):
> g_file_storage gadget: bulk-in set halt
> 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 (time: 251.512856 s):
> 0: 55 53 42 53 08 30 c3 81 fc 00 00 00 01
You skipped about 20 seconds here, from 251.51 to 271.50. Did anything
happen during that time?
> ****************************
> # dmesg -c -s 500000
> ****************************
>
> g_file_storage gadget: bulk-out, length 0 (time: 271.509632 s):
> g_file_storage gadget: bulk_out_complete --> -108, 0/31
> g_file_storage gadget: disconnect or port reset
This is not what I got when connecting to a Windows XP system. Here's the
corresponding section from my log (it's almost a year old now!):
Jan 28 14:42:35 ida kernel: g_file_storage gadget: SCSI command: READ FORMAT
CAPACITIES; Dc=10, Di=252; Hc=10, Hi=252
Jan 28 14:42:35 ida kernel: g_file_storage gadget: bulk-in, length 0:
Jan 28 14:42:35 ida kernel: g_file_storage gadget: bulk-in set halt
Jan 28 14:42:35 ida kernel: g_file_storage gadget: sending command-failure
status
Jan 28 14:42:35 ida kernel: g_file_storage gadget: sense data: SK x06, ASC
x29, ASCQ x00; info x0
Jan 28 14:42:35 ida kernel: g_file_storage gadget: bulk-in, length 13:
Jan 28 14:42:35 ida kernel: 0: 55 53 42 53 50 a1 b7 81 fc 00 00 00 01
Jan 28 14:42:35 ida kernel: g_file_storage gadget: bulk-out, length 31:
Jan 28 14:42:35 ida kernel: 0: 55 53 42 43 50 a1 b7 81 12 00 00 00 80 00
0c 03
Jan 28 14:42:35 ida kernel: 10: 00 00 00 12 00 00 00 00 00 00 00 00 00 00
00
Jan 28 14:42:35 ida kernel: g_file_storage gadget: SCSI command: REQUEST SENSE;
Dc=6, Di=18; Hc=12, Hi=18
Jan 28 14:42:35 ida kernel: g_file_storage gadget: bulk-in, length 18:
Jan 28 14:42:35 ida kernel: 0: f0 00 06 00 00 00 00 0b 00 00 00 00 29 00
00 00
Jan 28 14:42:35 ida kernel: 10: 00 00
Jan 28 14:42:35 ida kernel: g_file_storage gadget: bulk-in, length 13:
Jan 28 14:42:35 ida kernel: 0: 55 53 42 53 50 a1 b7 81 00 00 00 00 00
Jan 28 14:42:35 ida kernel: g_file_storage gadget: bulk-out, length 31:
Jan 28 14:42:35 ida kernel: 0: 55 53 42 43 50 a1 b7 81 fc 00 00 00 80 00
0a 23
Jan 28 14:42:35 ida kernel: 10: 00 00 00 00 00 00 00 fc 00 00 00 00 00 00
00
Jan 28 14:42:35 ida kernel: g_file_storage gadget: SCSI command: READ FORMAT
CAPACITIES; Dc=10, Di=252; Hc=10, Hi=252
Jan 28 14:42:35 ida kernel: g_file_storage gadget: bulk-in, length 12:
Jan 28 14:42:35 ida kernel: 0: 00 00 00 08 00 00 40 00 02 00 02 00
Jan 28 14:42:35 ida kernel: g_file_storage gadget: bulk-in set halt
Jan 28 14:42:35 ida kernel: g_file_storage gadget: bulk-in, length 13:
Jan 28 14:42:35 ida kernel: 0: 55 53 42 53 50 a1 b7 81 f0 00 00 00 00
Jan 28 14:42:35 ida kernel: g_file_storage gadget: bulk-out, length 31:
Jan 28 14:42:35 ida kernel: 0: 55 53 42 43 50 a1 b7 81 08 00 00 00 80 00
0a 25
Jan 28 14:42:35 ida kernel: 10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00
Jan 28 14:42:35 ida kernel: g_file_storage gadget: SCSI command: READ CAPACITY;
Dc=10, Di=8; Hc=10, Hi=8
Jan 28 14:42:35 ida kernel: g_file_storage gadget: bulk-in, length 8:
Jan 28 14:42:35 ida kernel: 0: 00 00 3f ff 00 00 02 00
Jan 28 14:42:35 ida kernel: g_file_storage gadget: bulk-in, length 13:
Jan 28 14:42:35 ida kernel: 0: 55 53 42 53 50 a1 b7 81 00 00 00 00 00
Jan 28 14:42:35 ida kernel: g_file_storage gadget: bulk-out, length 31:
Jan 28 14:42:35 ida kernel: 0: 55 53 42 43 50 a1 b7 81 00 02 00 00 80 00
0a 28
Jan 28 14:42:35 ida kernel: 10: 00 00 00 00 00 00 00 01 00 00 00 00 00 00
00
As you can see, after getting the ASC = 0x29 response to READ FORMAT
CAPACITIES, Windows did a REQUEST SENSE and then successfully retried the
READ FORMAT CAPACITIES. I don't know why this didn't happen to you -- or
maybe it did; it would be in the part of the log that you left out!
Alan Stern
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