[flashrom] [PATCH] Add support for RayeR SPIPGM hardware.

[Joseph Smith]

On 05/26/2010 06:12 PM, Michael Karcher wrote:
> Am Mittwoch, den 26.05.2010, 19:23 +0200 schrieb Carl-Daniel Hailfinger:
>> +int rayer_bitbang_spi_init(void)
>> +{
>> +       /* Pick a default value for now. */
>> +       lpt_iobase = 0x378;
>> +
>> +       get_io_perms();
>
> Ah, direct port access for the parallel port. While this is definitely
> the way that works independent of the operating system (as it works
> around the operating system), it is a pity to use this on operating
> systems that have a clean parallel port bitbang interface. It happens to
> be the case that Linux does support parallel port bitbanging
> using /dev/parport. Any chance to use OS-specific parallel port
> interfaces where possible?
>
AH, be careful here, using the Linux driver /dev/parport vs direct pport 
access will surely slow things down. And with a parallel port you need 
as much speed as possible. I guess it is a question of speed vs the 
"proper" way....


-- 
Thanks,
Joseph Smith
Set-Top-Linux
www.settoplinux.org