On Wed, January 2, 2008 11:24 am, JD wrote:
> Ok,
>
> Kind of back up now.
>
> I can open ttyS3 ok now, but S4 etc was still failing.
> I copied up the latest tsuart1 and tsuart7800 modules and now each of
> uarts loads and sets/get tcattr without errors.
>
> The (maybe) last question then is how does ttyS2 get activated?
> Using the same code as previous, ttyS2 opens ok with 'open' but
> returns -1 for get/setattr.
Well if you start with "mknod /dev/ttyS3 c 234 1" then there is no ttyS2.
Maybe that should be "mknod /dev/ttyS2 c 234 1", and then "mknod
/dev/ttyS3 c 234 2", etc... but basically the idea is that major 234,
minor 1 is the first TS-UART, minor 2 is the second TS-UART, etc. It
doesn't matter what the actual device names are, it's the major/minor that
actually bind the device file to the driver.
______ Best Regards,
|__ __/ Michael Schmidt
|| Software Engineer
||echnologic Systems (EmbeddedARM.com)
|| (480) 16610 East Laser Drive #10
|/ 837-5200 Fountain Hills, AZ 85268
http://oz.embeddedarm.com/~michael
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