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DateFri, 20 Jun 2003 06:55:47 +0100
FromRussell King <>
SubjectRe: [PATCH] PnP Changes for 2.5.72
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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