We are using Owfs in Linux to access a DS1991 and DS1995 through the USB
DS9490R reader.
Everything is ok for DS1995.
For DS1991 we are not able to make it work. Maybe we are doing something wrong.
We know the password of the 3 pages of the iButton because we can set it with
another tool in Windows.
We tried with different approaches this one for example should be right:
1) Create a pwd.hex file with (in hex) 0x31 0x32 0x33 0x34 0x35 0x36 0x37 0x38
2) Check the file with hexedit in windows
3) Chech the file with hexdump in Linux
4) cat ./pwd.hex > /disk/1wire/02.12B0CE000000/pages/password.0
5) hexdump -Cv /disk/1wire/02.12B0CE000000/pages/page.0
Result is always all zeroes.
Also strange that is always 0x00 the result: the manual talks about random data
but we receive always 0x00.
Maybe is still our error but we made test with:
Web tool: no way
Linux tools: no way
Our C code: no way
If there is an error of us I suppose it should be on the procedure...
Can you help us?
Are you able to read DS1991?
Thank you again.
Eugenio Torrini
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