[lkml]   [2005]   [Jun]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: PNP parallel&serial ports: module reload fails (2.6.11)?
On 6/10/05, Bjorn Helgaas <> wrote:
> On Thursday 09 June 2005 3:16 pm, Russell King wrote:
> > The reason that 8250 first detects your ports is that they're found
> > via the legacy method which is independent of PnP. As you correctly
> > sumise, when you unload 8250_pnp, it disables the device so when you
> > re-load 8250, it's unable to detect your ports using the legacy method.
> >
> > But the legacy method needs to continue to exist for systems which
> > don't have PnP enabled.
> But shouldn't we someday move the legacy probing from 8250
> into an 8250_platform and only do it if we don't have 8250_pnp?

Given how much pain PNP/ACPI probing of i8042 was causing to everyone
I'd be cautious. BIOS writers are extremely creative. Maybe ia64 only
while x86 should default to legacy probing.

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2005-06-10 18:25    [from the cache]
©2003-2014 Jasper Spaans. hosted at Digital Ocean