ExpressCard
From Gentoo Linux Wiki
(Redirected from HARDWARE ExpressCard)
The ExpressCard is a succesor of PC Card / PCMCIA, featuring more modern interface, not backwards compatible with PC card.
There are 2 physical form-factors, ExpressCard/54 and ExpressCard/34. The numbers refer to the width of the ExpressCard in milimeters. ExpressCard/54 slots can accept ExpressCard/34 cards, but not the other way around.
Electronically ExpressCards can be implemented as either PCI Express or USB.
[edit] Linux kernel support
ExpressCard adapters are handled either by the Linux PCI subsystem as hotplug PCI Express adapters, or by the USB subsystem (depending on the adapter card).
| Linux Kernel Configuration: PCI Express based ExpressCards + hotplug (as of 2.6.19) |
Bus options (PCI, PCMCIA, EISA, MCA, ISA) ---> PCI Hotplug Support ---> <*> Support for PCI Hotplug (EXPERIMENTAL) Enable the option above to make the following settings visible. Bus options (PCI, PCMCIA, EISA, MCA, ISA) --->
[*] PCI support
PCI access mode (Any) --->
[*] PCI Express support
<M> PCI Express Hotplug driver
[*] Root Port Advanced Error Reporting support
|
[edit] Troubleshooting
If hotplug don't work, see the dmesg
Note: dmesg:
pciehp: HPC vendor_id 8086 device_id 2a01 ss_vid 0 ss_did 0 pciehp: Cannot get control of hotplug hardware for pci 0000:00:01.0 pciehp: HPC vendor_id 8086 device_id 283f ss_vid 0 ss_did 0 pciehp: Cannot get control of hotplug hardware for pci 0000:00:1c.0 pciehp: HPC vendor_id 8086 device_id 2841 ss_vid 0 ss_did 0 pciehp: Cannot get control of hotplug hardware for pci 0000:00:1c.1 pciehp: HPC vendor_id 8086 device_id 2845 ss_vid 0 ss_did 0 pciehp: Cannot get control of hotplug hardware for pci 0000:00:1c.3 pciehp: HPC vendor_id 8086 device_id 2849 ss_vid 0 ss_did 0 pciehp: Cannot get control of hotplug hardware for pci 0000:00:1c.5
And try this:
| Code: Ставим crossdev |
# rmmod pciehp # modprobe pciehp pciehp_force=1 |
