On Fri, Sep 25, 2020 at 9:48 AM johan.lind via BeagleBoard <beagleboard@googlegroups.com> wrote: > > I would need some help to understand why I can't write to an DS2433 eeprom. > > System information: > BBB Industrial board > Debian 10 (Buster IoT Image 2020-04-06) > Hardware attached are DS2482 i2c to w1 interface and DS2433 eeprom. > > Commands executed to set-up system: > $ modprobe ds2482 > $ echo ds2482 0x18 > /sys/bus/i2c/devices/i2c-1/new_device > $ modprobe wire > > I can read the eeprom by executing > $ cd /sys/bus/w1/devices/23-000002eddd9b > $ cat eeprom | hexdump > > Getting this far I assume hardware is correct and drivers are loaded > correctly. > > debian@beaglebone:/sys/bus/w1/devices/23-000002eddd9b$ ls > driver eeprom id name power subsystem uevent > > Should here be a directory called w1_slave? > I see such a directory on some web pages searching for similar problems with > w1. > > Now to the problem. > Executing the following command will fail: > debian@beaglebone:/sys/bus/w1/devices/23-000002eddd9b$ sudo cat > /home/debian/file > eeprom > [sudo] password for debian: > cat: write error: Invalid argument
https://elinux.org/Beagleboard:BeagleBoneBlack_Debian#Privileged_echo sudo sh -c "echo 'cat /home/debian/file' > eeprom" Regards, -- Robert Nelson https://rcn-ee.com/ -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CAOCHtYjESKmr1VJZz62uC-7t9rWzqJjZO114E6kZ5pvi9ZpX%3DQ%40mail.gmail.com.
