IBM T23 laptop and USB

[Wojciech Puchar]

why ehci isn't detected on IBM T23 laptop

possibly

pci2: <simple comms> at device 2.0 (no driver attached)

is the undetected ehci

i have compiled ehci in kernel

thank you

uhci0: <Intel 82801CA/CAM (ICH3) USB controller USB-A> port 0x1800-0x181f irq 
11 at device 29.0 on pci0
uhci0: [GIANT-LOCKED]
usb0: <Intel 82801CA/CAM (ICH3) USB controller USB-A> on uhci0
usb0: USB revision 1.0
uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
uhci1: <Intel 82801CA/CAM (ICH3) USB controller USB-B> port 0x1820-0x183f irq 
11 at device 29.1 on pci0
uhci1: [GIANT-LOCKED]
usb1: <Intel 82801CA/CAM (ICH3) USB controller USB-B> on uhci1
usb1: USB revision 1.0
uhub1: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
uhci2: <Intel 82801CA/CAM (ICH3) USB controller USB-C> port 0x1840-0x185f irq 
11 at device 29.2 on pci0
uhci2: [GIANT-LOCKED]
usb2: <Intel 82801CA/CAM (ICH3) USB controller USB-C> on uhci2
usb2: USB revision 1.0
uhub2: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub2: 2 ports with 2 removable, self powered
pci2: <simple comms> at device 2.0 (no driver attached)