Hi, I have a pxa270 based custom board (I don't know to much about the board) Originally my board operates as an USB device, but I would like to try it to use as an USB host (I see some success try with other boards on the net)... I know, the pxa270 have an OHCI controller... So I cut down the male connector from my board and solder a female to the right position and rewrite a new board driver (use mainstone.c as base) and boot up... (It looks everything work fine now (mmc reader, network device, nor flash) except the USB host function) I got these error message at boot (debug usb on, in the kernel): ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver ohci_hcd: block sizes: ed 64 td 64 In ohci_hcd_pxa27x_drv_probe<6>pxa27x-ohci pxa27x-ohci: PXA27x OHCI pxa27x-ohci pxa27x-ohci: new USB bus registered, assigned bus number 1 pxa27x-ohci pxa27x-ohci: irq 3, io mem 0x4c000000 pxa27x-ohci pxa27x-ohci: ohci_pxa27x_start, ohci:c78e68b8<7>pxa27x-ohci pxa27x-ohci: created debug files pxa27x-ohci pxa27x-ohci: OHCI controller state pxa27x-ohci pxa27x-ohci: OHCI 1.0, NO legacy support registers pxa27x-ohci pxa27x-ohci: control 0x083 HCFS=operational CBSR=3 pxa27x-ohci pxa27x-ohci: cmdstatus 0x00000 SOC=0 pxa27x-ohci pxa27x-ohci: intrstatus 0x00000044 RHSC SF pxa27x-ohci pxa27x-ohci: intrenable 0x8000001a MIE UE RD WDH pxa27x-ohci pxa27x-ohci: hcca frame #0009 pxa27x-ohci pxa27x-ohci: roothub.a 04000202 POTPGT=4 NPS NDP=2(3) pxa27x-ohci pxa27x-ohci: roothub.b 00000000 PPCM=0000 DR=0000 pxa27x-ohci pxa27x-ohci: roothub.status 00028002 OCIC DRWE OCI pxa27x-ohci pxa27x-ohci: roothub.portstatus [0] 0x00010101 CSC PPS CCS pxa27x-ohci pxa27x-ohci: roothub.portstatus [1] 0x00000100 PPS pxa27x-ohci pxa27x-ohci: roothub.portstatus [2] 0x00000100 PPS usb usb1: default language 0x0409 usb usb1: uevent usb usb1: usb_probe_device usb usb1: configuration #1 chosen from 1 choice usb usb1: adding 1-0:1.0 (config #1, interface 0) usb 1-0:1.0: uevent hub 1-0:1.0: usb_probe_interface hub 1-0:1.0: usb_probe_interface - got id hub 1-0:1.0: USB hub found hub 1-0:1.0: 3 ports detected hub 1-0:1.0: standalone hub hub 1-0:1.0: no power switching (usb 1.0) hub 1-0:1.0: global over-current protection hub 1-0:1.0: power on to power good time: 8ms hub 1-0:1.0: local power source is good hub 1-0:1.0: over-current condition exists hub 1-0:1.0: trying to enable port power on non-switchable hub usb usb1: New USB device found, idVendor=1d6b, idProduct=0001 usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb1: Product: PXA27x OHCI usb usb1: Manufacturer: Linux 2.6.28.7 ohci_hcd usb usb1: SerialNumber: pxa27x Initializing USB Mass Storage driver... usbcore: registered new interface driver usb-storage USB Mass Storage support registered. usbcore: registered new interface driver libusual TCP cubic registered RPC: Registered udp transport module. RPC: Registered tcp transport module. XScale iWMMXt coprocessor detected. pxa27x-ohci pxa27x-ohci: GetStatus roothub.portstatus [0] = 0x00010101 CSC PPS CCS hub 1-0:1.0: port 1: status 0101 change 0001 hub 1-0:1.0: state 7 ports 3 chg 0002 evt 0000 hub 1-0:1.0: port 1, status 0101, change 0000, 12 Mb/s pxa27x-ohci pxa27x-ohci: GetStatus roothub.portstatus [0] = 0x00100303 PRSC LSDA PPS PES CCS usb 1-1: new low speed USB device using pxa27x-ohci and address 2 pxa27x-ohci pxa27x-ohci: urb c78a3900 path 1 ep0in 5ec20000 cc 5 --> status -62 pxa27x-ohci pxa27x-ohci: urb c78a3900 path 1 ep0in 5ec20000 cc 5 --> status -62 pxa27x-ohci pxa27x-ohci: urb c78a3900 path 1 ep0in 5ec20000 cc 5 --> status -62 pxa27x-ohci pxa27x-ohci: GetStatus roothub.portstatus [0] = 0x00100303 PRSC LSDA PPS PES CCS usb 1-1: device descriptor read/64, error -62 pxa27x-ohci pxa27x-ohci: urb c78a3900 path 1 ep0in 5ec20000 cc 5 --> status -62 pxa27x-ohci pxa27x-ohci: urb c78a3900 path 1 ep0in 5ec20000 cc 5 --> status -62 pxa27x-ohci pxa27x-ohci: urb c78a3900 path 1 ep0in 5ec20000 cc 5 --> status -62 pxa27x-ohci pxa27x-ohci: GetStatus roothub.portstatus [0] = 0x00100303 PRSC LSDA PPS PES CCS usb 1-1: device descriptor read/64, error -62 pxa27x-ohci pxa27x-ohci: GetStatus roothub.portstatus [0] = 0x00100303 PRSC LSDA PPS PES CCS usb 1-1: new low speed USB device using pxa27x-ohci and address 3 pxa27x-ohci pxa27x-ohci: urb c78a3900 path 1 ep0in 5ec20000 cc 5 --> status -62 pxa27x-ohci pxa27x-ohci: urb c78a3900 path 1 ep0in 5ec20000 cc 5 --> status -62 pxa27x-ohci pxa27x-ohci: urb c78a3900 path 1 ep0in 5ec20000 cc 5 --> status -62 pxa27x-ohci pxa27x-ohci: GetStatus roothub.portstatus [0] = 0x00100303 PRSC LSDA PPS PES CCS usb 1-1: device descriptor read/64, error -62 pxa27x-ohci pxa27x-ohci: urb c78a3900 path 1 ep0in 5ec20000 cc 5 --> status -62 pxa27x-ohci pxa27x-ohci: urb c78a3900 path 1 ep0in 5ec20000 cc 5 --> status -62 pxa27x-ohci pxa27x-ohci: urb c78a3900 path 1 ep0in 5ec20000 cc 5 --> status -62 pxa27x-ohci pxa27x-ohci: GetStatus roothub.portstatus [0] = 0x00100303 PRSC LSDA PPS PES CCS usb 1-1: device descriptor read/64, error -62 pxa27x-ohci pxa27x-ohci: GetStatus roothub.portstatus [0] = 0x00100303 PRSC LSDA PPS PES CCS usb 1-1: new low speed USB device using pxa27x-ohci and address 4 pxa27x-ohci pxa27x-ohci: urb c78a3900 path 1 ep0out 5ec20000 cc 5 --> status -62 Sending DHCP requests .<7>pxa27x-ohci pxa27x-ohci: urb c78a3900 path 1 ep0out 5ec20000 cc 5 --> status -62 usb 1-1: device not accepting address 4, error -62 pxa27x-ohci pxa27x-ohci: GetStatus roothub.portstatus [0] = 0x00100303 PRSC LSDA PPS PES CCS usb 1-1: new low speed USB device using pxa27x-ohci and address 5 pxa27x-ohci pxa27x-ohci: urb c78a3900 path 1 ep0out 5ec20000 cc 5 --> status -62 pxa27x-ohci pxa27x-ohci: urb c78a3900 path 1 ep0out 5ec20000 cc 5 --> status -62 usb 1-1: device not accepting address 5, error -62 hub 1-0:1.0: unable to enumerate USB device on port 1 hub 1-0:1.0: overcurrent change hub 1-0:1.0: trying to enable port power on non-switchable hub hub 1-0:1.0: state 7 ports 3 chg 0000 evt 0001 After this boot, If I plug in a pen drive to the USB connector I don't see anything (not either in dmesg or in syslog), it look like it didn't detect the plug in... Where should I search? Maybe My board can't be an USB host device? regards, Balázs Zachár -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html