As far as I know, there is currently no mechanism in place to give each device a unique serial number, that would be shown in e.g. /proc/cpuinfo. This can seem not very useful, but it would be nice to have that for USB gadget drivers that make use of it (e.g. ADB on Android, fastboot, etc). This would allow having multiple sunxi devices connected at the same time.
Normally, the serial number has to be figured out by the bootloader and passed to the kernel through ATAGs. In U-Boot, it is defined using get_board_serial, that is not yet implemented on sunxi. I'm interested in figuring out the best way to do this. As far as I can see, Allwinner SoCs have some e-fuses, known as SID (Security ID): http://linux-sunxi.org/SID_Register_Guide for which Oliver has written a mainline Linux driver. Those should have device-specific values, except when they are set to 0. Do you have any better idea to do this, or is there some reference that I am missing? Thanks, -- Paul Kocialkowski, Replicant developer Replicant is a fully free Android distribution running on several devices, a free software mobile operating system putting the emphasis on freedom and privacy/security. Website: http://www.replicant.us/ Blog: http://blog.replicant.us/ Wiki/tracker/forums: http://redmine.replicant.us/ -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
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