Thursday, 03 August 2006

I wish hardware printed the PCI ID on it, so you could at least do some homework on what's what.

Bought a HP branded four port USB 2.0 controller from Fry's tonight, and the sucker doesn't appear to work despite the page for a mighty similar device saying it should work.

Here's the relevant bits for posterity:

lspci output:

01:0a.0 USB Controller: NEC Corporation USB (rev 43) (prog-if 10 [OHCI])
        Subsystem: Unknown device 1631:0035
        Flags: bus master, medium devsel, latency 64, IRQ 10
        Memory at ff8f5000 (32-bit, non-prefetchable) [size=4K]
        Capabilities: [40] Power Management version 2

01:0a.1 USB Controller: NEC Corporation USB (rev 43) (prog-if 10 [OHCI])
        Subsystem: Unknown device 1631:0035
        Flags: bus master, medium devsel, latency 64, IRQ 9
        Memory at ff8f6000 (32-bit, non-prefetchable) [size=4K]
        Capabilities: [40] Power Management version 2

01:0a.2 USB Controller: NEC Corporation USB 2.0 (rev 04) (prog-if 20 [EHCI])
        Subsystem: Unknown device 1631:1600
        Flags: medium devsel, IRQ 11
        Memory at ff8f7c00 (32-bit, non-prefetchable) [size=256]
        Capabilities: [40] Power Management version 2

01:0a.0 0c03: 1033:0035 (rev 43)
01:0a.1 0c03: 1033:0035 (rev 43)
01:0a.2 0c03: 1033:00e0 (rev 04)

Relevant dmesg output:

0000:01:0a.2 EHCI: unrecognized capability 00
ACPI: PCI Interrupt 0000:01:0a.2[C] -> Link [LNKA] -> GSI 11 (level, low) -> IRQ 11
ehci_hcd 0000:01:0a.2: EHCI Host Controller
ehci_hcd 0000:01:0a.2: new USB bus registered, assigned bus number 1
ohci_hcd: 2005 April 22 USB 1.1 'Open' Host Controller (OHCI) Driver (PCI)
ehci_hcd 0000:01:0a.2: irq 11, io mem 0xff8f7c00
ehci_hcd 0000:01:0a.2: startup error -19
ehci_hcd 0000:01:0a.2: USB bus 1 deregistered
ACPI: PCI interrupt for device 0000:01:0a.2 disabled
ehci_hcd 0000:01:0a.2: init 0000:01:0a.2 fail, -19
ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 10
PCI: setting IRQ 10 as level-triggered
ACPI: PCI Interrupt 0000:01:0a.0[A] -> Link [LNKC] -> GSI 10 (level, low) -> IRQ 10
ohci_hcd 0000:01:0a.0: OHCI Host Controller
ohci_hcd 0000:01:0a.0: new USB bus registered, assigned bus number 1
ohci_hcd 0000:01:0a.0: irq 10, io mem 0xff8f5000
ACPI: PCI Interrupt 0000:01:0a.1[B] -> Link [LNKD] -> GSI 9 (level, low) -> IRQ9
ohci_hcd 0000:01:0a.1: OHCI Host Controller
ohci_hcd 0000:01:0a.1: new USB bus registered, assigned bus number 2
ohci_hcd 0000:01:0a.1: irq 9, io mem 0xff8f6000

I knew I should have bought the VIA-based one instead. Red always goes faster.