Dear list, I can't see any usb device attached to a philips hub. Maybe somebody can solve the problem. With Windoze, everything works fine.
The setting is as following: usb 2.0 host -> active cable (hub) -> active cable (hub) -> active hub (philips chip) -> other usb devices such as sandisk CF adapter, hp printer (are not visible) usbview shows all three hubs, but not the attached devices :-). Changing the bus does not help, removing the active cable does not solve the problem, looks like it is related to the philips hub. loonquawl:/proc/bus/usb # lsusb Bus 005 Device 011: ID 04cc:1521 Philips Semiconductors USB 2.0 Hub Bus 005 Device 010: ID 04b4:6560 Cypress Semiconductor Corp. CY7C65640 USB-2.0 "TetraHub" Bus 005 Device 002: ID 04b4:6560 Cypress Semiconductor Corp. CY7C65640 USB-2.0 "TetraHub" Bus 005 Device 001: ID 0000:0000 Bus 004 Device 001: ID 0000:0000 Bus 003 Device 001: ID 0000:0000 Bus 002 Device 001: ID 0000:0000 Bus 001 Device 001: ID 0000:0000 loonquawl:/proc/bus/usb # cat /proc/bus/usb/ 001/ 002/ 003/ 004/ 005/ devices loonquawl:/proc/bus/usb # cat /proc/bus/usb/devices T: Bus=05 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh= 8 B: Alloc= 0/800 us ( 0%), #Int= 3, #Iso= 0 D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS= 8 #Cfgs= 1 P: Vendor=0000 ProdID=0000 Rev= 2.06 S: Manufacturer=Linux 2.6.11.4-21.7-smp ehci_hcd S: Product=EHCI Host Controller S: SerialNumber=0000:00:1d.7 C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 2 Ivl=256ms T: Bus=05 Lev=01 Prnt=01 Port=02 Cnt=01 Dev#= 2 Spd=480 MxCh= 4 D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=02 MxPS=64 #Cfgs= 1 P: Vendor=04b4 ProdID=6560 Rev= 0.08 C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=100mA I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=01 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 1 Ivl=256ms I: If#= 0 Alt= 1 #EPs= 1 Cls=09(hub ) Sub=00 Prot=02 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 1 Ivl=256ms T: Bus=05 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#= 10 Spd=480 MxCh= 4 D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=02 MxPS=64 #Cfgs= 1 P: Vendor=04b4 ProdID=6560 Rev= 0.08 C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=100mA I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=01 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 1 Ivl=256ms I: If#= 0 Alt= 1 #EPs= 1 Cls=09(hub ) Sub=00 Prot=02 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 1 Ivl=256ms T: Bus=05 Lev=03 Prnt=10 Port=00 Cnt=01 Dev#= 11 Spd=480 MxCh= 7 D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=04cc ProdID=1521 Rev= 2.00 C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 1 Ivl=256ms T: Bus=04 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2 B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0 D: Ver= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=0000 ProdID=0000 Rev= 2.06 S: Manufacturer=Linux 2.6.11.4-21.7-smp uhci_hcd S: Product=UHCI Host Controller S: SerialNumber=0000:00:1d.3 C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr= 0mA I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 2 Ivl=255ms T: Bus=03 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2 B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0 D: Ver= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=0000 ProdID=0000 Rev= 2.06 S: Manufacturer=Linux 2.6.11.4-21.7-smp uhci_hcd S: Product=UHCI Host Controller S: SerialNumber=0000:00:1d.2 C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr= 0mA I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 2 Ivl=255ms T: Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2 B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0 D: Ver= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=0000 ProdID=0000 Rev= 2.06 S: Manufacturer=Linux 2.6.11.4-21.7-smp uhci_hcd S: Product=UHCI Host Controller S: SerialNumber=0000:00:1d.1 C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr= 0mA I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 2 Ivl=255ms T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2 B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0 D: Ver= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=0000 ProdID=0000 Rev= 2.06 S: Manufacturer=Linux 2.6.11.4-21.7-smp uhci_hcd S: Product=UHCI Host Controller S: SerialNumber=0000:00:1d.0 C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr= 0mA I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 2 Ivl=255ms loonquawl:/proc/bus/usb # lsmod Module Size Used by usblp 16640 0 snd_seq 62992 1 snd_seq_device 12940 1 snd_seq usbserial 34024 0 speedstep_lib 8324 0 freq_table 8832 0 thermal 18184 0 processor 28780 1 thermal nvram 13576 0 fan 8836 0 button 11024 0 battery 14084 0 ac 9220 0 ipv6 273920 14 snd_pcm_oss 66336 0 snd_mixer_oss 24448 1 snd_pcm_oss bttv 156560 0 video_buf 25476 1 bttv firmware_class 13824 1 bttv i2c_algo_bit 13064 1 bttv v4l2_common 9856 1 bttv btcx_risc 8840 1 bttv tveeprom 17048 1 bttv videodev 13440 1 bttv rfcomm 43672 0 hidp 19968 2 l2cap 30976 10 rfcomm,hidp bluetooth 55300 5 rfcomm,hidp,l2cap vmnet 34596 2 vmmon 110604 0 af_packet 26760 2 edd 14560 0 evdev 12928 0 joydev 13888 0 st 43676 0 sr_mod 21284 0 sg 42912 0 e1000 91316 0 snd_intel8x0 37184 4 snd_ac97_codec 78328 1 snd_intel8x0 snd_pcm 109828 3 snd_pcm_oss,snd_intel8x0,snd_ac97_codec snd_timer 31108 2 snd_seq,snd_pcm snd 71172 17 snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_intel8x0,snd_ac97_codec,snd_pcm,snd_timer soundcore 13664 1 snd snd_page_alloc 14340 2 snd_intel8x0,snd_pcm ohci1394 37508 0 ieee1394 108472 1 ohci1394 i2c_i801 12556 0 i2c_core 26624 4 bttv,i2c_algo_bit,tveeprom,i2c_i801 ehci_hcd 37896 0 uhci_hcd 37008 0 usbcore 121688 5 usblp,usbserial,ehci_hcd,uhci_hcd intel_agp 26012 1 agpgart 37676 1 intel_agp subfs 12416 2 dm_mod 64768 0 parport_pc 44356 1 lp 15396 0 parport 40392 2 parport_pc,lp reiserfs 263024 1 ide_cd 44036 0 cdrom 42784 2 sr_mod,ide_cd ide_disk 22400 0 aic7xxx 200632 2 piix 14468 0 [permanent] ide_core 131904 3 ide_cd,ide_disk,piix sd_mod 23168 3 scsi_mod 136264 5 st,sr_mod,sg,aic7xxx,sd_mod dmesg (usb debug turned on in kernel): If the philips hub is connected, the attached devices are not recognised, if the hp printer is directly connected to the second active cable, the printer is recognised, the behaviour is reproducible: usb 5-3.1.1: USB disconnect, address 4 usb 5-3.1.1: new high speed USB device using ehci_hcd and address 5 hub 5-3.1.1:1.0: USB hub found hub 5-3.1.1:1.0: 7 ports detected usb 5-3.1.1: USB disconnect, address 5 philips hub removed, hp printer directly connected to active cable: usb 5-3.1.1: new full speed USB device using ehci_hcd and address 6 drivers/usb/class/usblp.c: usblp0: USB Bidirectional printer dev 6 if 0 alt 0 proto 2 vid 0x03F0 pid 0x1904 usbcore: registered new driver usblp drivers/usb/class/usblp.c: v0.13: USB Printer Device Class driver usb 5-3.1.1: USB disconnect, address 6 drivers/usb/class/usblp.c: usblp0: removed usb 5-3.1.1: new high speed USB device using ehci_hcd and address 7 hub 5-3.1.1:1.0: USB hub found hub 5-3.1.1:1.0: 7 ports detected usb 5-3.1.1: USB disconnect, address 7 usb 5-3.1: USB disconnect, address 3 usb 5-3.1: new high speed USB device using ehci_hcd and address 8 hub 5-3.1:1.0: USB hub found hub 5-3.1:1.0: 7 ports detected usb 5-3.1: USB disconnect, address 8 usb 5-3.1: new full speed USB device using ehci_hcd and address 9 drivers/usb/class/usblp.c: usblp0: USB Bidirectional printer dev 9 if 0 alt 0 proto 2 vid 0x03F0 pid 0x1904 usb 5-3.1: USB disconnect, address 9 drivers/usb/class/usblp.c: usblp0: removed usb 5-3.1: new high speed USB device using ehci_hcd and address 10 hub 5-3.1:1.0: USB hub found hub 5-3.1:1.0: 4 ports detected usb 5-3.1.1: new high speed USB device using ehci_hcd and address 11 hub 5-3.1.1:1.0: USB hub found hub 5-3.1.1:1.0: 7 ports detected thanks Dani ------------------------------------------------------- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. 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