Messages in this thread | | | From | Bjorn Helgaas <> | Subject | Re: PNP parallel&serial ports: module reload fails (2.6.11)? | Date | Fri, 10 Jun 2005 10:01:40 -0600 |
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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?
I think David Woodhouse suggested something like this a while back, but I can't find a great reference for it. Here's a thread (unfortunately split into sections by the archive) that mentions it:
http://www.ussg.iu.edu/hypermail/linux/kernel/0409.3/1545.html http://www.ussg.iu.edu/hypermail/linux/kernel/0410.0/0084.html http://www.ussg.iu.edu/hypermail/linux/kernel/0411.0/0127.html
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