I'm impressed. You certainly figured out the code style.
Questions:
1. We "read_ROM" and get a positlve result if any devices exist on the
selected path?
2. Should we use a name like "not_empty" or "search" ?
Paul Alfille
On 12/12/06, Jan Kandziora <[EMAIL PROTECTED]> wrote:
Hi all, hi Paul,
I made a small enhancement to owfs to implement the "read ROM" function
all
onewire chips have. With this function, a single key on a (sub)-bus can be
identified without (fairly expensive) scanning.
The attached code works with ibutton keys on the buses of a DS2482-800 and
with ibutton keys on the sub-buses of the DS2409. I'm a little unsure if
the
error handling is correct, so I'll wait for your opinion until I make up a
proper patch. Most mysterious to me is how to signalize an error.
Returning
-EINVAL leads to that:
read_ROM (simultaneous) dat=ff.ffffffffffff crc8=ff crc8c=14 ret=1
read_ROM (simultaneous) dat=ff.ffffffffffff crc8=ff crc8c=14 ret=1
read_ROM (simultaneous) dat=ff.ffffffffffff crc8=ff crc8c=14 ret=1
*** glibc detected *** double free or corruption (fasttop): 0x08084b98 ***
Abgebrochen
Kind regards
Jan
--
The first law of demos:
- never try to actually use the system for anything
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