Messages in this thread | | | Subject | Re: [PATCH] pmac_zilog: insert correct failure path for device numbers being taken | From | Albert Cahalan <> | Date | 16 Jul 2004 21:05:45 -0400 |
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> I'll talk to him at KS/OLS and see if we can come up with > some solution, this is actually a regression since 2.4 > could "offset" macserial, so we could accomodate, for > example, a driver for a pcmcia modem _and_ the zilog ports.
That's the wrong way around. The zilog ports are always there, and thus could have stable numbers. The PCMCIA ports can not have stable numbers; they might be gone even.
In general, the platform-specific (motherboard, generally) ports should get to grab device numbers first. Anthing connected by a normally hot-plug bus goes last. Plain PCI is in the middle, because PCI cards are occasionally moved.
For a PC, serial ports hanging off the motherboard's LPC bus (what amounts to built-in ISA) should go before serial ports that might be on normal PCI cards, which in turn go before those on PCMCIA.
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