Greg KH wrote: > Why do this conversion in the driver? Shouldn't that be something that > userspace worries about? The udbg interface is a very early kernel printk interface. I don't know what the "u" stands for, but "dbg" is for "debug". The udbg interface is removed once a normal console driver kicks in. This is why I need to specify the byte channel handle via Kconfig. This code is used so early that not even the device tree is available. All of the udbg_putc functions do this. -- Timur Tabi Linux kernel developer at Freescale -- To unsubscribe from this list: send the line "unsubscribe linux-console" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html