Re: PCIe Hotplug: NFG unless I boot with card already inserted.

Mark Lord
2007-10-16T18:59:40Z

Mark Lord wrote:
> Kristen Carlson Accardi wrote:
>> On Tue, 16 Oct 2007 14:39:33 -0400
>> Mark Lord <lkml@rtr.ca> wrote:
>>
>>> I also checked my modprobe.d/ options, and I am using pciehp_force=1.
>>> Without that flag, none of this ever works.
>>
>> OK - I suspected something like this. Most Dell computers don't support
>> ExpressCard hotplug using Native PCIe -- in fact, I've not seen a single
>> one, they explicitly disable it because they have not validated it or
>> they have and something didn't work right. I'll take a look at what
>> you've
>> got, but be aware that you are forcing pciehp to load and operate on a
>> system
>> where they've certainly either not tested it, or tested it and something
>> bad happened.
>
> Perhaps. But this one works perfectly, except for two driver bugs:
>
> 1. Driver does not notice already-inserted cards after modprobe.
> 2. Driver fails to function after suspend/resume until reloaded.
>
> Both of those are fixable in the kernel.

Ahh.. point 2 in particular suffers from "suspend/resume" not implemented.
Or rather, implemented as a pair of "do nothing" functions.

Cheers