william@beaglebone:~$ sudo dd count=30 bs=1 if=/sys/bus/i2c/devices/0-0050/0-00500/nvmem ▒U3▒A335BNLT00C03214BBBK0403▒▒30+0 records in 30+0 records out 30 bytes (30 B) copied, 0.0114076 s, 2.6 kB/s
On Tue, Aug 9, 2016 at 12:50 PM, Phil Mills <[email protected]> wrote: > Naturally - that's part of the test jig. I have a very special paperclip > all modeled up in solidworks. > > But the first problem is that ioctl (or the i2cdump utility) won't touch > that address even for a read operation because it's in use by the kernel. > That's the bit I'd like to get around. > > > On Tue, Aug 9, 2016 at 1:43 PM Gerald Coley <[email protected]> > wrote: > >> You will need to modify the hardware to remove the write protect before >> you can do any writes.. >> >> Gerald >> >> On Tue, Aug 9, 2016 at 2:41 PM, Phil Mills <[email protected]> wrote: >> >>> I'd like to be able to read/write data from the BBB's on-board EEPROM >>> programatically using the ioctl(...) interface just like any other i2c >>> eeprom my software might be asked to go deal with. >>> >>> Of course the kernel claims that device for itself pretty quickly upon >>> boot which means I can't get to it that way (fails to set address, device >>> in use). >>> >>> Is there a relatively simple way of getting the Kernel to release that >>> device ? >>> >>> -- >>> 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 [email protected]. >> >> >>> To view this discussion on the web visit https://groups.google.com/d/ >>> msgid/beagleboard/fab7a669-a56e-4c30-901f-89552495aa50% >>> 40googlegroups.com >>> <https://groups.google.com/d/msgid/beagleboard/fab7a669-a56e-4c30-901f-89552495aa50%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> >> >> -- >> Gerald >> >> [email protected] >> http://beagleboard.org/ >> [email protected] >> >> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to a topic in the >> Google Groups "BeagleBoard" group. >> To unsubscribe from this topic, visit https://groups.google.com/d/ >> topic/beagleboard/EuSRwT-Zs3U/unsubscribe. >> To unsubscribe from this group and all its topics, send an email to >> [email protected]. >> To view this discussion on the web visit https://groups.google.com/d/ >> msgid/beagleboard/CAHK_S%2BdxZac2kZwE%2BmSN8ShMWT0siaGhQfCOw% >> 2BaJuiTjwurY1w%40mail.gmail.com >> <https://groups.google.com/d/msgid/beagleboard/CAHK_S%2BdxZac2kZwE%2BmSN8ShMWT0siaGhQfCOw%2BaJuiTjwurY1w%40mail.gmail.com?utm_medium=email&utm_source=footer> >> . >> For more options, visit https://groups.google.com/d/optout. >> > -- > 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 [email protected]. > To view this discussion on the web visit https://groups.google.com/d/ > msgid/beagleboard/CAOCPF%2BsVrR98rp22_%3Df%3D7ZMTVp% > 3DD4vdC6mq65jdqZd-NmygnLQ%40mail.gmail.com > <https://groups.google.com/d/msgid/beagleboard/CAOCPF%2BsVrR98rp22_%3Df%3D7ZMTVp%3DD4vdC6mq65jdqZd-NmygnLQ%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > > For more options, visit https://groups.google.com/d/optout. > -- 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 [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CALHSORoyau5v3xYo-SToD-tBDxN2LjrWahzoPS8UjGrSxUyENQ%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
