On 30.10.2012 0:22, Martin Sucha wrote:
> lp:~martin-sucha/helenos/kernel-serial
> This branch contains updates to ns16550 kernel serial driver and code to use 
> it for I/O (for kernel console) on ia32 and amd64 platforms.
> 
> If you have any comments or suggestions before I merge them, please let me 
> know.

For the record, my concern on the IRC was that now the ns16550 driver
API is asymmetric. The device is both an indev_t and outdev_t, but
ns16550_init() takes care only of the indev_t half. The outdev_t part is
artificially initialized on the first invocation of ns16550_output() for
the given instance.

There are several options here. We can aim for complete split of the
input/output part like in the dslrn driver, or can just provide separate
init()'s for the input and the output parts, but let them share the
instance. Or keep the single init(), but pass it some arguments that
would specify what parts to initialize.

Jakub


_______________________________________________
HelenOS-devel mailing list
[email protected]
http://lists.modry.cz/cgi-bin/listinfo/helenos-devel

Reply via email to