> Is there another way to set up a line discipline from the kernel itself > without the need from userland intervention, even before any / is > mounted? There is no fundamental reason you can't do that once the tty object itself exists. Currently there is no path for doing it in the kernel. > Maybe the early serial console support layer could be extended a bit so > speakup can use it first during the boot? For now it's quite tied to > just printing the printk logs. drivers/accessibility/braille_console.c > does manage do make something else, but it happens that the > serial_core.c's uart_console_write puts additional \rs before \ns, which > can be a problem. > > Also, for proper speech flow, speakup would need to be able to read > characters from the device. Some debugger folk want that too. I've been trying to get to the point where each tty consists of a tty_struct which is the instance of an opened tty device, and a tty_port which is a common struct instance for each physical port. That then has some operations attached to it. However at the moment most of the operation paths are not pushed into tty_port, not every device yet has a tty_port and many of the paths that need pushing into tty_port reference material that is in struct tty but probably also needs moving. So there is an awful lot of work to be done. I guess the quick 'get it working' hack for the moment would be to add a 'raw' flag to the console output routines and use those (where raw=1 would mean 'don't tamper with the formatting') 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
