Hi Srinivas, hi Andrew, [add Sanchayan and Philipp] > Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx> hat am 10. August 2015 um > 12:37 geschrieben: > > > Hi Andrew, > > On 09/08/15 16:19, Andrew Lunn wrote: > > Hi Srinivas > > > > The AT24 eeprom driver contains the comment: > > > > /* > > * Export the EEPROM bytes through sysfs, since that's convenient. > > * By default, only root should see the data (maybe passwords etc) > > */ > > > > and as you would expect from this: > > > > # ls -l > > ./devices/platform/soc/soc:aips-bus@40000000/40066000.i2c/i2c-0/0-0050/eeprom > > -rw------- 1 root root 512 Aug 9 10:16 > > ./devices/platform/soc/soc:aips-bus@40000000/40066000.i2c/i2c-0/0-0050/eeprom > > > > The AT25 and the MAX6875 driver are the same. > > > > However nvmem has different defaults: > > > > # ls -l > > ./devices/platform/soc/soc:aips-bus@40000000/40066000.i2c/i2c-0/0-0050/0-00500/nvmem > > -rw-r--r-- 1 root root 0 Aug 9 10:16 > > ./devices/platform/soc/soc:aips-bus@40000000/40066000.i2c/i2c-0/0-0050/0-00500/nvmem > > > Yes, nvmem by default sets the read permission for everyone S_IRUGO. > Which was the most common use case. i can only speak for mxs-ocotp, but root-only access is sufficient. > > > Has this been considered and discussed? > Thanks for bringing this up, No, we did not discuss this explicitly, but > it should not be an issue to accommodate this. Provider still have > flexibility to configure such things. IMHO it would better the default settings of the framework would be compatible and same restrictive as the eeprom drivers. In case a provider needs more privileges, it should be his job. > > As a first patchset we wanted to keep the framework simple and add > features as we move on. That's true, but it's an ABI too. So changing default settings soon is better. Regards Stefan > > Thanks, > srini > > > > Thanks > > Andrew > > > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@xxxxxxxxxxxxxxxxxxx > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
