Hi, On 4/1/2019 9:01 PM, Felipe Balbi wrote: > > Hi, > > (I can't answer private queries. Please, always Cc the public mailing > list) > > Antonio Santagiuliana <santantonioswap@xxxxxxxxx> writes: > >> Hello >> I am using RaspberryPI for a project and we want to connect 16 USB to UART >> bridges ( at the moment we are using 8 dual UART cp2105 from Silicon Labs ). >> I have seen your page at : >> https://urldefense.proofpoint.com/v2/url?u=https-3A__dri.freedesktop.org_docs_drm_driver-2Dapi_usb_dwc3.html&d=DwIBAg&c=DPL6_X_6JkXFx7AXWqB0tg&r=cQBKt4q-qzNVC53rNAwuwplH23V61rHQhhULvdLA0U8&m=RfK-uhEeZZ8yf79ch5you3BpE1JNPDHRzgmOGkeLBss&s=rGrgFKpJ6-CEmAtR-hiae64T80Z7oCTx3r4xHn-lf4I&e= >> so I was trying to get tracefs output. >> Problem is that on the /t/events subfolder I cannot find the >> dwc3/enable because >> there is not any /dwc3 in /t/events. >> Because of this I cannot set echo 1 > /t/events/dwc3/enable >> as instead your page says I should do. >> I can only find */t/events/enable* should I activate that ? >> running usb-devices command I get this about the drivers loaded : >> >> T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh= 1 >> D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1 >> P: Vendor=1d6b ProdID=0002 Rev=04.14 >> S: Manufacturer=Linux 4.14.39 dwc_otg_hcd > > You're not using dwc3. That's dwc2, instead. Also, dwc3 tracepoints are > peripheral side only. Host side is a standard xhci, so you would use > xhci tracepoints for that. > > Still, you're using dwc2 from what I can tell. Minas is the maintainer > of that driver. > > It's not dwc2 driver. It's dwc_otg Synopsys reference driver which supplying along with HSOTG core. But what the issue? > > > > >> S: Product=DWC OTG Controller >> S: SerialNumber=3f980000.usb >> C: #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA >> I: If#=0x0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub >> >> T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=480 MxCh= 5 >> D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=02 MxPS=64 #Cfgs= 1 >> P: Vendor=0424 ProdID=9514 Rev=02.00 >> C: #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=2mA >> I: If#=0x0 Alt= 1 #EPs= 1 Cls=09(hub ) Sub=00 Prot=02 Driver=hub >> >> T: Bus=01 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#= 3 Spd=480 MxCh= 0 >> D: Ver= 2.00 Cls=ff(vend.) Sub=00 Prot=01 MxPS=64 #Cfgs= 1 >> P: Vendor=0424 ProdID=ec00 Rev=02.00 >> C: #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=2mA >> I: If#=0x0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=ff Driver=smsc95xx >> >> T: Bus=01 Lev=02 Prnt=02 Port=01 Cnt=02 Dev#= 14 Spd=480 MxCh= 4 >> D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1 >> P: Vendor=0409 ProdID=005a Rev=01.00 >> C: #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=100mA >> I: If#=0x0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub >> >> T: Bus=01 Lev=03 Prnt=14 Port=00 Cnt=01 Dev#= 15 Spd=12 MxCh= 0 >> D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 >> P: Vendor=10c4 ProdID=ea70 Rev=01.00 >> S: Manufacturer=Silicon Labs >> S: Product=CP2105 Dual USB to UART Bridge Controller >> S: SerialNumber=008714B9 >> C: #Ifs= 2 Cfg#= 1 Atr=80 MxPwr=100mA >> I: If#=0x0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=vcpsilabs >> I: If#=0x1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=vcpsilabs >> >> T: Bus=01 Lev=03 Prnt=14 Port=01 Cnt=02 Dev#= 16 Spd=12 MxCh= 0 >> D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 >> P: Vendor=10c4 ProdID=ea70 Rev=01.00 >> S: Manufacturer=Silicon Labs >> S: Product=CP2105 Dual USB to UART Bridge Controller >> S: SerialNumber=0086F956 >> C: #Ifs= 2 Cfg#= 1 Atr=80 MxPwr=100mA >> I: If#=0x0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=vcpsilabs >> I: If#=0x1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=vcpsilabs >> >> T: Bus=01 Lev=03 Prnt=14 Port=02 Cnt=03 Dev#= 17 Spd=12 MxCh= 0 >> D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 >> P: Vendor=10c4 ProdID=ea70 Rev=01.00 >> S: Manufacturer=Silicon Labs >> S: Product=CP2105 Dual USB to UART Bridge Controller >> S: SerialNumber=00870FBD >> C: #Ifs= 2 Cfg#= 1 Atr=80 MxPwr=100mA >> I: If#=0x0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=vcpsilabs >> I: If#=0x1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=vcpsilabs >> >> T: Bus=01 Lev=03 Prnt=14 Port=03 Cnt=04 Dev#= 18 Spd=480 MxCh= 4 >> D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1 >> P: Vendor=0409 ProdID=005a Rev=01.00 >> C: #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=100mA >> I: If#=0x0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub >> >> T: Bus=01 Lev=04 Prnt=18 Port=00 Cnt=01 Dev#= 19 Spd=12 MxCh= 0 >> D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 >> P: Vendor=10c4 ProdID=ea70 Rev=01.00 >> S: Manufacturer=Silicon Labs >> S: Product=CP2105 Dual USB to UART Bridge Controller >> S: SerialNumber=00870E54 >> C: #Ifs= 2 Cfg#= 1 Atr=80 MxPwr=100mA >> I: If#=0x0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=vcpsilabs >> I: If#=0x1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=vcpsilabs >> >> T: Bus=01 Lev=04 Prnt=18 Port=01 Cnt=02 Dev#= 20 Spd=12 MxCh= 0 >> D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 >> P: Vendor=10c4 ProdID=ea70 Rev=01.00 >> S: Manufacturer=Silicon Labs >> S: Product=CP2105 Dual USB to UART Bridge Controller >> S: SerialNumber=00870B3F >> C: #Ifs= 2 Cfg#= 1 Atr=80 MxPwr=100mA >> I: If#=0x0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=vcpsilabs >> I: If#=0x1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=vcpsilabs >> >> T: Bus=01 Lev=04 Prnt=18 Port=02 Cnt=03 Dev#= 21 Spd=12 MxCh= 0 >> D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 >> P: Vendor=10c4 ProdID=ea70 Rev=01.00 >> S: Manufacturer=Silicon Labs >> S: Product=CP2105 Dual USB to UART Bridge Controller >> S: SerialNumber=0086F938 >> C: #Ifs= 2 Cfg#= 1 Atr=80 MxPwr=100mA >> I: If#=0x0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=vcpsilabs >> I: If#=0x1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=vcpsilabs >> >> T: Bus=01 Lev=04 Prnt=18 Port=03 Cnt=04 Dev#= 22 Spd=12 MxCh= 0 >> D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 >> P: Vendor=10c4 ProdID=ea70 Rev=01.00 >> S: Manufacturer=Silicon Labs >> S: Product=CP2105 Dual USB to UART Bridge Controller >> S: SerialNumber=00870981 >> C: #Ifs= 2 Cfg#= 1 Atr=80 MxPwr=100mA >> I: If#=0x0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=vcpsilabs >> I: If#=0x1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=vcpsilabs >> >> T: Bus=01 Lev=02 Prnt=02 Port=03 Cnt=03 Dev#= 23 Spd=12 MxCh= 0 >> D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 >> P: Vendor=10c4 ProdID=ea70 Rev=01.00 >> S: Manufacturer=Silicon Labs >> S: Product=CP2105 Dual USB to UART Bridge Controller >> S: SerialNumber=0086E7E6 >> C: #Ifs= 2 Cfg#= 1 Atr=80 MxPwr=100mA >> I: If#=0x0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=vcpsilabs >> I: If#=0x1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=vcpsilabs >> >> >> >> >> thank you very much for your page , very interesting. >> >> >> Kind Regards >> Antonio Santagiuliana > Thanks, Minas
