Re: Why eeprom driver is read-only ?

[Chriz Chow <cmcvista@xxxxxxxxx>]

Hello,

It seems that some drivers in drivers/misc/eeprom does support write access. For example at24.c seems to have a function at24_write().

https://github.com/torvalds/linux/blob/master/drivers/misc/eeprom/at24.c

However some drivers doesn’t have write support, I believe it is because of simplicity - some eeprom are used for read only, such as ddr4 spd eeprom.

Point me out if I am wrong. 

Chriz

Enviado desde mi iPhone

El 19 nov 2018, a las 9:12 p. m., Ruben Safir <ruben@xxxxxxxxxxxx> escribió:

On 11/19/18 7:08 AM, Ranran wrote:

Hello,

What is the reason that kernel driver of eeprom is configured only as

read-only ?

Is it because the BIOS is stored there ?

Is there a way to make it writable ?

Thank you,

Ran

_______________________________________________

Kernelnewbies mailing list

Kernelnewbies@xxxxxxxxxxxxxxxxx

https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies

because the ROM is read only?


--
So many immigrant groups have swept through our town
that Brooklyn, like Atlantis, reaches mythological
proportions in the mind of the world - RI Safir 1998
http://www.mrbrklyn.com
DRM is THEFT - We are the STAKEHOLDERS - RI Safir 2002

http://www.nylxs.com - Leadership Development in Free Software
http://www.brooklyn-living.com

Being so tracked is for FARM ANIMALS and and extermination camps,
but incompatible with living as a free human being. -RI Safir 2013

_______________________________________________
Kernelnewbies mailing list
Kernelnewbies@xxxxxxxxxxxxxxxxx
https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies

_______________________________________________
Kernelnewbies mailing list
Kernelnewbies@xxxxxxxxxxxxxxxxx
https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies