Using the MAX3107

Using the MAX3107

[Ubdfu]

Hello,

Please excuse my and be aware that I'm quite new to kernel hacking :-)

I'm currently trying to enable the RS485 support on the MAX3107 and 
continuously getting the error:
"max3107 spi2.0: interrup isn't serviced normally!"
Assuming it means interrupt it nevertheless does not help me to find the 
cause of the problem.

Added some patches form:
http://marc.info/?l=linux-serial&w=2&r=1&s=max3107&q=b

And changed the baudrate to the appropriate, set bit for rs458 mode.

Has anyone tried working with the MAX3107?

Thanks in advance
Marcel

Re: Using the MAX3107

[Alan Cox]

On Tue, 29 May 2012 17:02:41 +0200
Ubdfu <ubdfu@student.kit.edu> wrote:

> Hello,
> 
> Please excuse my and be aware that I'm quite new to kernel hacking :-)
> 
> I'm currently trying to enable the RS485 support on the MAX3107 and 
> continuously getting the error:
> "max3107 spi2.0: interrup isn't serviced normally!"
> Assuming it means interrupt it nevertheless does not help me to find the 
> cause of the problem.
> 
> Added some patches form:
> http://marc.info/?l=linux-serial&w=2&r=1&s=max3107&q=b
> 
> And changed the baudrate to the appropriate, set bit for rs458 mode.
> 
> Has anyone tried working with the MAX3107?

Not in rs485 mode and not for a while. The base code in drivers/tty/serial
should work for RS232 mode at least.

The trigger you are hitting implies that it got an event during
suspend/freezing or somehow tried to queue work when work was already
queued.

The current code doesn't cope with the device being on a shared interrupt
line, so my first guess would be that might be the problem ?

Alan