[coldsync-hackers] USB sync problem...

[beh at icemark dot net]

Hi there,


  a few weeks I asked a question regarding linux USB sync
support. Unfortunately, since then I've hardly had time to look
into this any further...

  ...anyway - I'm running linux-2.5.51, and everything LOOKS fine,
at first.

  But, I still can't sync the palm yet...


There is one thing, that I find rather interesting:

    - I put the Tungsten in its cradle and plug the cradle into the
      USB port of my notebook.

    - I run 'coldsync -mb', and I get:

	Warning: no device on /dev/ttyUSB0. Sleeping

      This message is printed every few seconds.

    - But when I press the HotSync button on the palm, then a few
      seconds later, the message 'Please press the HotSync button.'
      appears on the console -- and after that, nothing happens any
      more.



Note: I've tried that a few times, the "Please press the HotSync
button" message only appears, AFTER I push the HotSync button...


Here's the output from strace:

    15435 fstat64(3, {st_mode=S_IFREG|0664, st_size=7636, ...}) = 0
    15435 old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40012000
    15435 read(3, "# sample.coldsyncrc\n#\n# $Id: sam"..., 8192) = 7636
    15435 read(3, "", 4096)                 = 0
    15435 read(3, "", 8192)                 = 0
    15435 ioctl(3, 0x5401, 0xbfffd7d0)      = -1 ENOTTY (Inappropriate ioctl for device)
    15435 close(3)                          = 0
    15435 munmap(0x40012000, 4096)          = 0
    15435 stat64("/home/beh/lib/Tungsten/20030110", {st_mode=S_IFDIR|0775, st_size=0, ...}) = 0
    15435 brk(0x80a0000)                    = 0x80a0000
    15435 open("/dev/ttyUSB0", O_RDWR)      = -1 ENODEV (No such device)
    15435 write(2, "Warning: no device on /dev/ttyUS"..., 45) = 45
    15435 rt_sigprocmask(SIG_BLOCK, [CHLD], [32], 8) = 0
    15435 rt_sigaction(SIGCHLD, NULL, {SIG_DFL}, 8) = 0
    15435 rt_sigprocmask(SIG_SETMASK, [32], NULL, 8) = 0
    15435 nanosleep({5, 0}, {5, 0})         = 0
    15435 open("/dev/ttyUSB0", O_RDWR)      = -1 ENODEV (No such device)
    15435 write(2, "Warning: no device on /dev/ttyUS"..., 45) = 45
    15435 rt_sigprocmask(SIG_BLOCK, [CHLD], [32], 8) = 0
    15435 rt_sigaction(SIGCHLD, NULL, {SIG_DFL}, 8) = 0
    15435 rt_sigprocmask(SIG_SETMASK, [32], NULL, 8) = 0
    15435 nanosleep({5, 0}, {5, 0})         = 0
    15435 open("/dev/ttyUSB0", O_RDWR)      = -1 ENODEV (No such device)
    15435 write(2, "Warning: no device on /dev/ttyUS"..., 45) = 45
    15435 rt_sigprocmask(SIG_BLOCK, [CHLD], [32], 8) = 0
    15435 rt_sigaction(SIGCHLD, NULL, {SIG_DFL}, 8) = 0
    15435 rt_sigprocmask(SIG_SETMASK, [32], NULL, 8) = 0
[some time during this nanosleep, I pressed the hotsync button...]
    15435 nanosleep({5, 0}, {5, 0})         = 0
    15435 open("/dev/ttyUSB0", O_RDWR)      = 3
    15435 ioctl(3, 0x5401, {B9600 -opost -isig -icanon -echo ...}) = 0
    15435 ioctl(3, 0x5402, {B230400 -opost -isig -icanon -echo ...}) = 0
    15435 ioctl(3, 0x5401, {B230400 -opost -isig -icanon -echo ...}) = 0
    15435 ioctl(3, 0x5401, {B230400 -opost -isig -icanon -echo ...}) = 0
    15435 ioctl(3, 0x5402, {B9600 -opost -isig -icanon -echo ...}) = 0
    15435 ioctl(3, 0x5401, {B9600 -opost -isig -icanon -echo ...}) = 0
    15435 fstat64(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 4), ...}) = 0
    15435 old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40012000
    15435 write(1, "Please press the HotSync button."..., 33) = 33
    15435 select(4, [3], NULL, NULL, {30, 0}) = 1 (in [3], left {29, 999000})
    15435 read(3, "\1", 1)                  = 1
    15435 read(3, "\377", 1)                = 1
    15435 read(3, "\0", 1)                  = 1
    15435 read(3, "\0", 1)                  = 1
    15435 read(3, "\0", 1)                  = 1
    15435 read(3, "\26", 1)                 = 1
    15435 read(3, "\220", 1)                = 1
    15435 read(3, "\1", 1)                  = 1
    15435 read(3, "\0", 1)                  = 1
    15435 read(3, "\0", 1)                  = 1
    15435 read(3, "\0", 1)                  = 1
    15435 read(3, "\0", 1)                  = 1
    15435 read(3, "\0", 1)                  = 1
    15435 read(3, "\0", 1)                  = 1
    15435 read(3, "\0", 1)                  = 1
    15435 read(3, " ", 1)                   = 1
    15435 read(3, "\0", 1)                  = 1
    15435 read(3, "\0", 1)                  = 1
    15435 read(3, "\0", 1)                  = 1
    15435 read(3, "\10", 1)                 = 1
    15435 read(3, "\0", 1)                  = 1
    15435 read(3, "\0", 1)                  = 1
    15435 read(3, "\1", 1)                  = 1
    15435 read(3, "\0", 1)                  = 1
    15435 read(3, "\0", 1)                  = 1
    15435 read(3, "\0", 1)                  = 1
    15435 read(3, "\0", 1)                  = 1
    15435 read(3, "\0", 1)                  = 1
    15435 read(3, 0x809a2ec, 1)             = ? ERESTARTSYS (To be restarted)



Running 'coldsync -mb' through ircomm0 works fine, it's just the
USB that seems to cause problems...


Any clue, what's causing the trouble?




        Benedikt

  BEAUTY, n.  The power by which a woman charms a lover and terrifies a
    husband.
			(Ambrose Bierce, The Devil's Dictionary)
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