-----linux-usb-owner@xxxxxxxxxxxxxxx wrote: ----- >In theory you should print atomic_read(&urb->use_count) instead of >urb->use_count itself. That explains why you got the ridiculous >value. Ok. will try later. >> Okay here are the contents of the files while the controller hangs. >But i >> have no clue what these contents mean. >> >> Server ~ # ls -al /sys/kernel/debug/usb/ohci/0000\:00\:02.0/ > >This is the wrong directory -- it is the directory for bus 1. You >need >the directory for bus 2: /sys/kernel/debug/usb/ohci/0000:00:04.0/ Okay. See below please. >If you plug your FTDI device into bus 1 instead of bus 2, does the >weather-station program then work okay? No. I plugged it to bus 3 and 4 also with no luck. See the files while program hang: Server ~ # lsusb Bus 002 Device 001: ID 1d6b:0002 Bus 003 Device 002: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC Bus 003 Device 003: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC Bus 003 Device 001: ID 1d6b:0001 Bus 001 Device 001: ID 1d6b:0002 Bus 004 Device 002: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC Bus 004 Device 001: ID 1d6b:0001 Server ~ # Server ~ # mount -t debugfs none /sys/kernel/debug Server ~ # Server ~ # cat /sys/kernel/debug/usb/ohci/0000\:00\:02.0/async cat: /sys/kernel/debug/usb/ohci/0000:00:02.0/async: Operation not permitted Server ~ # cat /sys/kernel/debug/usb/ohci/0000\:00\:02.0/periodic size = 32 Server ~ # cat /sys/kernel/debug/usb/ohci/0000\:00\:02.0/registers bus pci, device 0000:00:02.0 OHCI Host Controller ohci_hcd OHCI 1.0, NO legacy support registers control 0x683 RWE RWC HCFS=operational CBSR=3 cmdstatus 0x00006 SOC=0 BLF CLF intrstatus 0x00000020 FNO intrenable 0x8000005e MIE RHSC UE RD SF WDH ed_controlhead 05817050 ed_bulkhead 058170f0 hcca frame 0xaac1 fmintvl 0xa7782edf FIT FSMPS=0xa778 FI=0x2edf fmremaining 0x8000238a FRT FR=0x238a periodicstart 0x2a2f lsthresh 0x0700 hub poll timer off roothub.a 01000206 POTPGT=1 NPS NDP=6(6) roothub.b 00000000 PPCM=0000 DR=0000 roothub.status 00008000 DRWE roothub.portstatus [0] 0x00000103 PPS PES CCS roothub.portstatus [1] 0x00000103 PPS PES CCS roothub.portstatus [2] 0x00000100 PPS roothub.portstatus [3] 0x00000100 PPS roothub.portstatus [4] 0x00000100 PPS roothub.portstatus [5] 0x00000100 PPS Server ~ # cat /sys/kernel/debug/usb/ohci/0000\:00\:04.0/async Server ~ # cat /sys/kernel/debug/usb/ohci/0000\:00\:04.0/ async periodic registers Server ~ # cat /sys/kernel/debug/usb/ohci/0000\:00\:04.0/periodic size = 32 Server ~ # cat /sys/kernel/debug/usb/ohci/0000\:00\:04.0/registers bus pci, device 0000:00:04.0 OHCI Host Controller ohci_hcd OHCI 1.0, NO legacy support registers control 0x683 RWE RWC HCFS=operational CBSR=3 cmdstatus 0x00000 SOC=0 intrstatus 0x00000024 FNO SF intrenable 0x8000005a MIE RHSC UE RD WDH ed_controlhead 0581f000 hcca frame 0x0b9d fmintvl 0xa7782edf FIT FSMPS=0xa778 FI=0x2edf fmremaining 0x80000ba7 FRT FR=0x0ba7 periodicstart 0x2a2f lsthresh 0x0700 hub poll timer off roothub.a 01000206 POTPGT=1 NPS NDP=6(6) roothub.b 00000000 PPCM=0000 DR=0000 roothub.status 00008000 DRWE roothub.portstatus [0] 0x00000100 PPS roothub.portstatus [1] 0x00000100 PPS roothub.portstatus [2] 0x00000100 PPS roothub.portstatus [3] 0x00000100 PPS roothub.portstatus [4] 0x00000100 PPS roothub.portstatus [5] 0x00000103 PPS PES CCS Server ~ # Server ~ # ps ax | grep ws2500 18765 ? Ss 0:00 /bin/bash -c /var/www/localhost/htdocs/ws2000/ws2500-1.7/ws2500 -p /dev/ttyWeather -n -t -i | php /var/www/localhost/htdocs/ws2000/update.php 18768 ? D 0:00 /var/www/localhost/htdocs/ws2000/ws2500-1.7/ws2500 -p /dev/ttyWeather -n -t -i 18980 pts/0 S+ 0:00 grep --colour=auto ws2500 Server ~ # ps ax | grep apc 6398 ? Ds 0:00 /lib/nut/apcsmart -a apc 19020 pts/0 S+ 0:00 grep --colour=auto apc Server ~ # -- 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
