Hi list,
I'm an embedded software engineer working on a project that uses DS2430A and
DS2505 slave devices to store run-time and configuration data. I'm building
everything from source and have installed them under Linux 2.6.35 running on a
Freescale i.MX53 (ARM Cortex-A8) CPU. Only 5 channels of the ds2482-800 bus
master are used. The application accesses uncached data. The slave device are
in attachments that can be connected to the embedded system via a 5 m cable.
The attachments contain brushless DC motors. The embedded system is a DC power
supply/motor controller. The 1-wire generally functions well, but randomly a
physically connected attachments' slave devices "disappear" from the owfs file
system for some random period (a few ms to a few seconds). Mounting owfs with
--debug --error_level=9 shows no errors, but has provided confirmation that
owfs is acting as expected on the data that fuse.ko/libfuse provides. This
suggests the issue is occurring with fuse or in kernel space. Is it possible
to pass parameters to fuse to enable fuse debug output? Any suggestions on
debugging this issue would be appreciated.
General details:
Bus Master: ds2482-800 channels 0-4 connected, 5-7 not connected
Slave devices: ds2430a and ds2505
Fuse version: 2.9.2
OWFS version: 2.8p15
Typical OWFS mount command-line: "/usr/bin/owfs --i2c=/dev/i2c-0:0 -m mnt/1wire
--allow_other"
Thanks in advance!
Larry Howell (Contractor)
Software Design Engineer
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