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>> 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 >> > > > ------------------------------------------------------------------------------ > _______________________________________________ > Owfs-developers mailing list > Owfs-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/owfs-developers > > ------------------------------------------------------------------------------ _______________________________________________ Owfs-developers mailing list Owfs-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/owfs-developers
