Re: [Bitpim-devel] Timeouts on SCP-5500

[Stephen W. <sa...@ge...>]

On Mon, 2004-02-23 at 04:06, Roger Binns wrote:
> > Redoing the command is not a problem for the Sanyo 5500 phonebook or
> > calendar.  There is no state in the reading or writing of these.
> 
> What I recommend you do is the quickest dirtiest hack to see if it
> fixes the problem.  Don't commit it though :-)  If it does fix it
> then we can try to figure out a proper way of doing this.
I'll do something.  If I can keep the hack limited to com_sanyo5500, I
may check it in.
> 
> A good test is to do an entire filesystem backup.  For the 4400 I
> had to add a delay of 0.3 of a second before getting each file.
> If you don't the processor seems to get overwhelmed or something.
> 
The file system backup works fine, even without the 0.3 second delay. 
But the packets in file system mode are a bit over 256 bytes, while the
phonebook protocol packets are over 1000 bytes long.  (And most of that
space is not used).

> > If I capture the data with SnoopyPro, the packet I send to the phone is
> > a single 1034 BULK_OR_INTERRUPT_TRANSFER thingy, but the response comes
> > back in 4 or 5 groups.  The first set of bytes almost always 99 bytes
> > which might be followed by 396, 198 and 341 bytes.  These counts will
> > vary.
> 
> What is the bulk limit?  For the LG phones and the AudioVox CDM 8900
> it is 64 bytes per URB.  Have you tried accessing the phone using libusb
> rather than the acm module?

How do I get the bulk limit?  When I was trying the Sanyo 4900 using
libusb, things would seem to happen in 64 byte chunks.  It also always
eventually timed out on me.

When I try the libusb with the 5500, it will sometime work, but often
get a usbdevicewrapper instance has no attribute 'flushInput' error.

Traceback (most recent call last):
  File "./gui.py", line 150, in run
    res=call()
  File "./gui.py", line 91, in __call__
    return apply(self.method, self.args+args, d)
  File "./gui.py", line 1067, in getdata
    i[1](results)
  File "./com_sanyo5500.py", line 69, in getphonebook
    self.sendpbcommand(req, self.protocolclass.studyresponse,
writemode=True)
  File "./com_sanyo.py", line 186, in sendpbcommand
    data=self.comm.readuntil(self.pbterminator, logsuccess=False,
numfailures=numretry)
  File "./commport.py", line 267, in readuntil
    self.ser.flushInput()
AttributeError: _usbdevicewrapper instance has no attribute 'flushInput'


			Stephen