> I had earlier submitted a patch [1] to remove the hard coded > major/minor number for Samsung UART driver, but that was rejected > because of userspace breakage. Without this patch, Samsung UART driver > can't bind to the hard-coded device node. Changing the default > major/minor will also not help to fix the objections raised in [1]. > > Would you please suggest a way forward? > > [1] https://lkml.org/lkml/2013/12/27/2 So to go and try and put this to bed properly I would suggest the following way forward. We add CONFIG_LEGACY_STATIC_TTY Some platforms historically used static device nodes for the console devices. Select this if you are building a kernel for an old system which has a static /dev. Note that because some devices historically used incorrect clashing numbering this may prevent you building a single kernel which can be booted on multiple platforms. And then we do .nr = CONFIG_SERIAL_SAMSUNG_UARTS, .cons = S3C24XX_SERIAL_CONSOLE, .dev_name = S3C24XX_SERIAL_NAME, #ifdef CONFIG_LEGACY_STATIC_TTY .major = S3C24XX_SERIAL_MAJOR, .minor = S3C24XX_SERIAL_MINOR, #endif for the afflicted ports (and anyone else who wants to migrate) We can then enable that config option for ARM (and in time for any other architecture that turns out to need/want it). Eventually it can go away (not that its exactly doing any harm if it doesnt). Does that sound a valid way forward for everyone ? Alan -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
