We're a supplier of the LinkUSB. Let me have a word with iButtonlink and
see what they say.
Remember, the LinkUSB is effectively a combination of a LINK45 and an
FTDI USB/serial adapter. The LINK45 in turn emulates a DS9097U-S09. So I
suspect what the OWFS code is doing is pretending that the LinkUSB is a
DS9097U-S09 connected to a virtual serial port (I haven't looked at the
code recently so can't confirm or deny this at the moment).
The DS9490R is a completely different beast and I wouldn't be surprised
if the code behaves differently with respect to the DS2409.
Anyway, let me have a word with the source of the linkUSB and see what
they say.
Nigel
On 16/11/2015 20:12, Stefano Miccoli wrote:
I'm using a LinkUSB interface... no idea what's wrong with your setup,
but let me share my configuration.
Here is my owfs.conf:
server: LINK = /dev/linkUSB0
server: port = 4304
server: readonly
server: error_level = 2
server: error_print = 1
/dev/linkUSB0 is a symlink to the actual device. The LinkUSB should
appear as /dev/ttyUSB0 (but as everything USB if you have more than
FT232 USB UART connected it could end up as /dev/ttyUSBx with any x)
$ ls -l /dev/linkUSB0
lrwxrwxrwx 1 root root 7 Nov 15 16:21 /dev/linkUSB0 -> ttyUSB0
$ ls -l /dev/ttyUSB0
crw-rw---T 1 root owfs 188, 0 Nov 16 18:32 /dev/ttyUSB0
Symlink is created by a udev rule, which also sets the device group
(for running owserver as an unprivileged user.)
SUBSYSTEM=="tty", \
ATTRS{product}=="FT232R USB UART", ATTRS{serial}=="here your
FT232R serial number", \
SYMLINK+="linkUSB0", GROUP="owfs"
You can determine your FT232R serial number searching the output of
$ udevadm info -n /dev/ttyUSB0 -a
for the relevant ATTRS lines:
ATTRS{manufacturer}=="FTDI"
ATTRS{product}=="FT232R USB UART"
ATTRS{serial}=="xxxxxxxx"
My linkUSB is the only bus master, so it appears as /bus.0 on owfs,
and here is the printout of the interface tree:
/bus.0/interface/settings/address '/dev/linkUSB0'
/bus.0/interface/settings/ds2404_found '0'
/bus.0/interface/settings/name 'Other LINK'
/bus.0/interface/settings/overdrive '0'
/bus.0/interface/settings/reconnect '0'
/bus.0/interface/settings/version ' 16'
/bus.0/interface/statistics/bus_time ' 85786.9'
/bus.0/interface/statistics/close_errors ' 0'
/bus.0/interface/statistics/detect_errors ' 0'
/bus.0/interface/statistics/elapsed_time ' 1927640'
/bus.0/interface/statistics/errors ' 0'
/bus.0/interface/statistics/locks ' 1202591'
/bus.0/interface/statistics/open_errors ' 0'
/bus.0/interface/statistics/overdrive/attempts ' 0'
/bus.0/interface/statistics/overdrive/failures ' 0'
/bus.0/interface/statistics/program_errors ' 0'
/bus.0/interface/statistics/pullup_errors ' 0'
/bus.0/interface/statistics/read_errors ' 0'
/bus.0/interface/statistics/reconnect_errors ' 0'
/bus.0/interface/statistics/reconnects ' 1'
/bus.0/interface/statistics/reset_errors ' 2'
/bus.0/interface/statistics/resets ' 1594947'
/bus.0/interface/statistics/search_errors/error_pass_1 ' 0'
/bus.0/interface/statistics/search_errors/error_pass_2 ' 0'
/bus.0/interface/statistics/search_errors/error_pass_3 ' 0'
/bus.0/interface/statistics/select_errors ' 0'
/bus.0/interface/statistics/shorts ' 0'
/bus.0/interface/statistics/status_errors ' 0'
/bus.0/interface/statistics/timeouts ' 0'
/bus.0/interface/statistics/unlocks ' 1202608'
/bus.0/interface/statistics/write_errors ' 2'
Hope this helps.
S.
On 16 Nov 2015, at 17:56, Matthias Urlichs <[email protected]
<mailto:[email protected]>> wrote:
Hi,
I asked this a couple weeks ago. No reply, unfortunately.
Does anybody know whether it's possible to fix this? I'd hate to dig
through my home cabling to find+rip out these DS2409 things, they're
buried rather well, behind the newly-installed power wiring ...
On 15.08.2015 16:45, Matthias Urlichs wrote:
Hi,
I have an older 1wire network with a bunch of DS2409 (1st-gen
HobbyBoards hub,
among others). I just tried to replace a DS9490R with a LinkUSB
interface. The
result was ... less than I expected.
# owdir
/1F.0CB204000000
[...]
# owdir /1F.0CB204000000/main
#
... i.e., nothing. Duh? Known limitation?
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more interactive manner. Teradata is also now providing full enterprise
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