Question about synth_request_region

[Trevor Astrope]

One thing to add to the below. According to lspci, my serial port is using 
irq 16. It also reports that an usb and vga controller are also using irq 
16.

So, is my problem not the pci express card itself, but rather that the irq 
is being shared and speakup can't get an exclusive lock on it?

If so, is there any way for speakup to play nice and share the irq?

Thanks,

Trevor On Wed, 30 Jun 2010, Trevor Astrope wrote:

> Merci Samuel.
>
> I thought it might have  something to do with the types of serial ports 
> defined in the kernels include/linux/serial.h. Btw, it defines PORT_MAX as 
> 13. Not sure if this is the same thing, but I was unable to detect my dectalk 
> via my pci express serial card after changing it to 13.
>
> Actually, if I comment out that whole if block including the check for the 
> error, speakup_dectlk does report that it found the dectalk on ttyS0, but it 
> only says, ""DecTalk Express ready" in a very sick sounding voice.
>
> If I uncomment the below around line 79 of serialio.c, it does print "in irq" 
> many times in the logs and eventually says, "Too many timeouts, deactivating 
> speakup."
>
> /*printk(KERN_ERR "in irq\n"); */
> /*pr_warn("in IRQ\n"); */
>
> So, it looks like there is more to the problem.
>
> Btw, I changed the values of ttyS0 to 0xCC00 and 16 for the i/o address and 
> irq respectively in the kernels arch/x86/include/asm/serial.h file to match 
> the output of setserial /dev/ttyS0 -a
>
>
> On Wed, 30 Jun 2010, Samuel Thibault wrote:
>
>> Trevor Astrope, le Wed 30 Jun 2010 13:47:36 -0400, a écrit :
>>> Does anyone know what the value 8 refers to in the synth_request_region
>>> calls in serio.c?
>> 
>> The number of io ports, starting from the base.
>> 
>> Samuel
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>> 
>