On Mon, Jan 5, 2009 at 7:46 PM, William Brown <mahi...@earthlink.net> wrote:
> Here is my init.d startup script. They should be separate but I wonder
> if the server -u all could be causing a conflict since ttyUSB1 is
> connected with a usb/rs232 adapter? In my perl program I use
No, the -u scans for DS9097 adapters, only. The tty devices won't match the
vendor/device code.
Note that "-u all" seems not to work but "-uall" works.
>
> OW::init('/dev/ttyUSB1');. Both programs are running at the same time
> but should be using separate adapters and buses.
>
> #DS9490R
> /opt/owfs/bin/owserver -u all
> /opt/owfs/bin/owhttpd -p 3001 -s 192.168.0.55:4304
>
> #DS9097U
> /opt/owfs/bin/owfs -d /dev/ttyUSB1 /mnt/1wire3
>
> #CM11A
> /usr/local/bin/heyu start
>
> Paul Alfille wrote:
> > The perl program (or ow.pm <http://ow.pm>) use the same library as
> > owfs. It will also have the same constraints -- it needs access to the
> > usb port.
> >
> > You aren't running the programs at the same time, are you? They can't
> > both access the port.
> >
> > Well they can, but you have to use owserver
> >
> > so:
> > sudo owserver -d /dev/ttyUSB1 -p 4304
> > owfs -s 4304 -m /1wire3
> > perl connects to -s 4304
> >
> >
> > Note that only owserver needs root permissions in this setup.
> >
> > Paul
> >
> > On Mon, Jan 5, 2009 at 6:30 PM, William Brown <mahi...@earthlink.net
> > <mailto:mahi...@earthlink.net>> wrote:
> >
> > My bad, I noticed I ran owfs without su so I tried again. It didn't
> > work so I restarted the computer and created a third directory 1wire3
> > and I was successful using owfs to read the DS9097U. So it's
> > something
> > in my Perl program that is choking. Perl program works ok with the
> > DS9490R but not with the DS9097U
> >
> > /mnt/1wire3
> > |-- bus.0
> > | `-- interface
> > | |-- settings
> > | | |-- address
> > | | |-- datasampleoffset
> > | | |-- ds2404_compliance
> > | | |-- flexible_timing
> > | | |-- name
> > | | |-- overdrive
> > | | |-- pulldownslewrate
> > | | |-- version
> > | | `-- writeonelowtime
> > etc
> > > | |-- errors
> > > | | |-- BUS_bit_errors
> > > | | |-- BUS_byte_errors
> > > | | |-- BUS_detect_errors
> > > | | |-- BUS_echo_errors
> > > | | |-- BUS_level_errors
> > > | | |-- BUS_next_alarm_errors
> > > | | |-- BUS_next_errors
> > > | | |-- BUS_readin_data_errors
> > > | | |-- BUS_status_errors
> > > | | |-- BUS_tcsetattr_errors
> > > | | |-- CRC16_errors
> > > | | |-- CRC16_tries
> > > | | |-- CRC8_errors
> > > | | |-- CRC8_tries
> > > | | |-- DS2480_level_docheck_errors
> > > | | |-- DS2480_read_fd_isset
> > > | | |-- DS2480_read_null
> > > | | |-- DS2480_read_read
> > >
> > etc
> >
> > William Brown wrote:
> > > When I try to access DS9097U serial adapter attached by HL-340
> > usb to
> > > rs232 adapter.
> > > Only the DS9097U is attached, there are no other devices (should
> > be OK?)
> > >
> > > $ sudo mkdir /mnt/1wire
> > > $ sudo /opt/owfs/bin/owfs -d /dev/ttyUSB1 /mnt/1wire
> > > $ tree -a /mnt/1wire
> > >
> > > /mnt/1wire [error opening dir]
> > >
> > > Paul Alfille wrote:
> > >
> > >> On Mon, Jan 5, 2009 at 4:45 AM, William Brown
> > <mahi...@earthlink.net <mailto:mahi...@earthlink.net>
> > >> <mailto:mahi...@earthlink.net <mailto:mahi...@earthlink.net>>>
> > wrote:
> > >>
> > >> So now I'm getting this error:
> > >>
> > >> DEFAULT: Cannot detect DS9097 (passive) interface on
> > /dev/ttyUSB1
> > >>
> > >> Can you tell me what it means? Will owfs pass through a
> > rs232/usb
> > >> converter?
> > >>
> > >> I general, yes.
> > >> There is a difference between the DS9097 and the DS9097U (blame
> > Maxim
> > >> for that).
> > >> One is a passive device that depends on the exact serial pulses to
> > >> synthesize 1-wire pulses, the other (the 9097U) uses a IC
> > called the
> > >> DS2480B to manage the 1-wire communication.
> > >>
> > >> If you have a passive 9097 adapter, try --8bit. Some of the serial
> > >> devices can't create 6-bit communication. That might be the case
> > >> withthe USB convertor.
> > >>
> > >> You are using /dev/ttyUSB1. I assume you got that from dmesg
> > output.
> > >> The allocation can change each time and it's often not a
> > symlink. The
> > >> permissions might not be applied to the actual device.
> > >>
> > >> Can you try your code as root? sudo /opt/owfs/bin/....
> > >>
> > >> Paul Alfille
> > >>
> > >
> > >
> > >
> >
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