Hello all,
I apologize if this is not the right place to ask for help. I know very
little about USB.
My immediate requirement is to get USB keyboard on my MPC860 based embedded
board.
It has got USS-312 OHCI controller ( Lucent Microelectronics ) sitting on
PCI. On my board, the USB controllers interrupt line is connected to IRQ5
of MPC860.
I am running linux-2.4.4 on the board. I get the following messages during
bootup.
usb_control/bulk_msg: timeout
usb-ohci.c: unlink URB timeout
usb.c: USB device not accepting new address=2 (error=-110)
I get the similar messages when I pulg out and plug in back the keyboard
cable. But the most interesting part is "cat /proc/interrupts" shows 0
interrupts against
usb-ohci entry.
root# cat /proc/interrupts
CPU0
5: 10380 8xx SIU Edge cpm
10: 0 8xx SIU Edge usb-ohci
15: 0 8xx SIU Edge tbint
BAD: 0
How does the USB driver detect pulgging out/in event with out interrupt
being generated ? Forgive me for my ingnorance.
Am I missing any configuration setting for USB keyboard ?
Any kind of help will be greatly appreciated.
Thank you in advance. I attached the USB related boot messages for more
information.
Regards,
Ramakrishna, G
usb.c: registered new driver usbdevfs
usb.c: registered new driver hub
PCI: Enabling device 00:07.0 (0000 -> 0002)
PCI: Enabling bus mastering for device 00:07.0
usb-ohci.c: USB OHCI at membase 0xe2023000, IRQ 10
usb-ohci.c: usb-00:07.0, PCI device 11c1:5802 (Lucent
Microelectronics)
usb.c: new USB bus registered, assigned bus number 1
Product: USB OHCI Root Hub
SerialNumber: e2023000
hub.c: USB hub found
hub.c: 2 ports detected
usb.c: registered new driver hid
usb.c: registered new driver serial
usbserial.c: USB Serial support registered for Handspring Visor
hub.c: USB new device connect on bus1/1, assigned device number 2
usb_control/bulk_msg: timeout
usb-ohci.c: unlink URB timeout
usb.c: USB device not accepting new address=2 (error=-110)
hub.c: USB new device connect on bus1/1, assigned device number 3
usb_control/bulk_msg: timeout
usb-ohci.c: unlink URB timeout
usb.c: USB device not accepting new address=3 (error=-110)
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