On 12/5/05, Alan Stern <[EMAIL PROTECTED]> wrote: > On Sun, 4 Dec 2005, Xiaofan Chen wrote: > > > > There is still a problem with hotplugging PICkit 2. Often we need to > > plug and unplug it several times in order to get it appeared in lsusb. > > > > Regards, > > Xiaofan Chen > > http://groups.google.com/group/pickit-devel/ > > > > > > [EMAIL PROTECTED]:/etc/hotplug/usb$ uname -a > > Linux ubuntu 2.6.10-5-k7 #1 Tue Apr 5 12:56:05 UTC 2005 i686 GNU/Linux > > Try using a more recent kernel, like 2.6.14. In 2.6.10 there is a > timing bug related to USB device detection and initialization. > > It's also possible that your problem is caused by a bad cable or a bad > cable connection. > > Alan Stern
On 12/5/05, Alan Stern <[EMAIL PROTECTED]> wrote: > On Sun, 4 Dec 2005, Xiaofan Chen wrote: > > There is still a problem with hotplugging PICkit 2. Often we need to > > plug and unplug it several times in order to get it appeared in lsusb. > > > > Regards, > > Xiaofan Chen > > http://groups.google.com/group/pickit-devel/ > > > > > > [EMAIL PROTECTED]:/etc/hotplug/usb$ uname -a > > Linux ubuntu 2.6.10-5-k7 #1 Tue Apr 5 12:56:05 UTC 2005 i686 GNU/Linux > > Try using a more recent kernel, like 2.6.14. In 2.6.10 there is a > timing bug related to USB device detection and initialization. > > It's also possible that your problem is caused by a bad cable or a bad > cable connection. > > Alan Stern > Thanks for the reply. I just tried the latest 2.6.14.3 kernel and the same thing happens here. Hotplugging still causes problem with PICkit 2 programmer. Is this has anything to do with the fact it has dual configurations? What does this "error -110" exactly mean? Attached please find the error information. Regards, Xiaofan [EMAIL PROTECTED]:~$ uname -a Linux ubuntu 2.6.14.3 #1 Thu Dec 8 21:02:46 SGT 2005 i686 GNU/Linux [EMAIL PROTECTED]:~$ dmesg ... [17179781.816000] usb 1-3: device descriptor read/64, error -110 [17179781.992000] ohci_hcd 0000:00:02.0: GetStatus roothub.portstatus [2] = 0x00 100103 PRSC PPS PES CCS [17179782.048000] usb 1-3: new full speed USB device using ohci_hcd and address 37 [17179782.048000] ohci_hcd 0000:00:02.0: urb d8d32bc0 path 3 ep0out 5ec20000 cc 5 --> status -110 [17179782.252000] ohci_hcd 0000:00:02.0: urb d8d32b40 path 3 ep0out 5ec20000 cc 5 --> status -110 [17179782.456000] usb 1-3: device not accepting address 37, error -110 [17179782.528000] ohci_hcd 0000:00:02.0: GetStatus roothub.portstatus [2] = 0x00 100103 PRSC PPS PES CCS [17179782.584000] usb 1-3: new full speed USB device using ohci_hcd and address 38 [17179782.584000] ohci_hcd 0000:00:02.0: urb d8d32bc0 path 3 ep0out 5ec20000 cc 5 --> status -110 [17179782.788000] ohci_hcd 0000:00:02.0: urb d8d32bc0 path 3 ep0out 5ec20000 cc 5 --> status -110 [17179782.992000] usb 1-3: device not accepting address 38, error -110 [17179782.992000] hub 1-0:1.0: state 5 ports 4 chg 0000 evt 0008 [17179783.868000] hub 1-0:1.0: state 5 ports 4 chg 0000 evt 0008 [17179783.868000] ohci_hcd 0000:00:02.0: GetStatus roothub.portstatus [2] = 0x00 010100 CSC PPS [17179783.868000] hub 1-0:1.0: port 3, status 0100, change 0001, 12 Mb/s [17179783.996000] hub 1-0:1.0: debounce: port 3: total 100ms stable 100ms status 0x100 [17179787.928000] hub 3-0:1.0: state 5 ports 8 chg 0000 evt 0020 [17179787.928000] ehci_hcd 0000:00:02.2: GetStatus port 5 status 001803 POWER si g=j CSC CONNECT [17179787.928000] hub 3-0:1.0: port 5, status 0501, change 0001, 480 Mb/s [17179788.056000] hub 3-0:1.0: debounce: port 5: total 100ms stable 100ms status 0x501 [17179788.112000] ehci_hcd 0000:00:02.2: port 5 full speed --> companion [17179788.112000] ehci_hcd 0000:00:02.2: GetStatus port 5 status 003001 POWER OW NER sig=se0 CONNECT [17179788.152000] hub 1-0:1.0: state 5 ports 4 chg 0000 evt 0008 [17179788.152000] ohci_hcd 0000:00:02.0: GetStatus roothub.portstatus [2] = 0x00 010101 CSC PPS CCS [17179788.152000] hub 1-0:1.0: port 3, status 0101, change 0001, 12 Mb/s [17179788.280000] hub 1-0:1.0: debounce: port 3: total 100ms stable 100ms status 0x101 [17179788.352000] ohci_hcd 0000:00:02.0: GetStatus roothub.portstatus [2] = 0x00 100103 PRSC PPS PES CCS [17179788.408000] usb 1-3: new full speed USB device using ohci_hcd and address 39 [17179788.480000] ohci_hcd 0000:00:02.0: GetStatus roothub.portstatus [2] = 0x00 100103 PRSC PPS PES CCS [17179788.556000] usb 1-3: ep0 maxpacket = 8 [17179788.572000] usb 1-3: skipped 1 descriptor after interface [17179788.580000] usb 1-3: default language 0x0409 [17179788.588000] usb 1-3: new device strings: Mfr=1, Product=2, SerialNumber=3 [17179788.588000] usb 1-3: Product: PICkit 2 Microcontroller Programmer [17179788.588000] usb 1-3: Manufacturer: Microchip Technology Inc. [17179788.588000] usb 1-3: SerialNumber: PIC18F2550 [17179788.588000] usb 1-3: hotplug [17179788.588000] usb 1-3: configuration #1 chosen from 2 choices [17179788.596000] usb 1-3: adding 1-3:1.0 (config #1, interface 0) [17179788.596000] usb 1-3:1.0: hotplug [17179788.600000] usbhid 1-3:1.0: usb_probe_interface [17179788.600000] usbhid 1-3:1.0: usb_probe_interface - got id [17179788.612000] drivers/usb/core/file.c: looking for a minor, starting at 96 [17179788.612000] hiddev96: USB HID v0.01 Device [Microchip Technology Inc. PICk it 2 Microcontroller Programmer] on usb-0000:00:02.0-3 [17179788.612000] hub 1-0:1.0: state 5 ports 4 chg 0000 evt 0008 [17179788.824000] usb 1-3: usbfs: interface 0 claimed by usbhid while 'pyk' sets config #1 [17179788.824000] drivers/usb/core/file.c: removing 96 minor ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! 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