Re: [PATCH] PnP Changes for 2.5.72

Russell King (rmk@arm.linux.org.uk)
Fri, 20 Jun 2003 06:55:47 +0100

On Thu, Jun 19, 2003 at 11:42:49PM +0000, Adam Belay wrote:
> I removed avoid_irq_share because the current pnp code, like the previous, does
> not allow irq sharing. Also it corrupts the device rule structure by replacing
> it with modified values that may not apply after devices are disabled etc.
> Is there a set of conditions I could follow to determine if a serial pnp device
> is capable of irq sharing, and also with which other devices can a capable
> device share an irq? If so, I could have the resource manager handle this type
> of situation when few irqs are available.

The problem is one of a lack of historical information on why it was
added. The driver itself allows serial ports to share interrupts between
themselves. Maybe tytso knows why the "Rockwell 56K ACF II Fax+Data+Voice
Modem" is unable to share IRQs?

-- 
Russell King (rmk@arm.linux.org.uk)                The developer of ARM Linux
             http://www.arm.linux.org.uk/personal/aboutme.html


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