Hi, Thanks for explanation on how things work. The problem is if I don't pass the vendor and prodId the 3g modem is detect as an USB mass storage. Even after using usb_modeswitch usb_modeswitch -default-vendor 0x19d2 -default-product 0×2000 -target-vendor 0x19d2 -target-product 0×0031 -message-endpoint 0×01 -message-content 555342431234567 82000000080000c85010101180101010101000000000000 I am running on: Linux OpenWrt 3.3.8 #1 Mon Jul 9 20:09:35 MSK 2012 mips GNU/Linux With: Modem 3g D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=19d2 ProdID=0031 Rev= 0.00 S: Manufacturer=ZTE,Incorporated S: Product=ZTE WCDMA Technologies MSM S: SerialNumber=P671A1VIVD010000 [282646.030000] usb 1-1.4: new high-speed USB device number 18 using ehci-platform [282646.170000] scsi6 : usb-storage 1-1.4:1.2 [282647.170000] scsi 6:0:0:0: Direct-Access ZTE MMC Storage 2.31 PQ: 0 ANSI: 2 [282647.190000] sd 6:0:0:0: [sdb] Attached SCSI removable disk [282719.880000] ftdi_sio 1-1.3:1.0: FTDI USB Serial Device converter detected [282719.880000] usb 1-1.3: Detected FT232BM [282719.890000] usb 1-1.3: Number of endpoints 2 [282719.890000] usb 1-1.3: Endpoint 1 MaxPacketSize 16384 [282719.900000] usb 1-1.3: Endpoint 2 MaxPacketSize 16384 [282719.900000] usb 1-1.3: Setting MaxPacketSize 64 [282719.920000] usb 1-1.3: FTDI USB Serial Device converter now attached to ttyUSB0 rs485 USB-Serial D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=0403 ProdID=6001 Rev= 4.00 S: Manufacturer=FTDI S: Product=USB <-> Serial Any suggestions are welcome. Thanks, Guilherme On Thu, Jul 19, 2012 at 5:55 PM, Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > On Thu, Jul 19, 2012 at 04:37:17PM -0300, Guilherme Bedin wrote: >> Hi, >> >> I am playing with some devices and seems to me that I stuck with >> a driver limitation. I connected usb-to-rs323/485 converter >> that uses ftdi_sio and usbserial modules and it works. After that >> I tried to use a 3g modem and it works passing vendor and product >> parameters to the usbserial module. > > Ah, you shouldn't be passing any vendor ids to the module, that's the > problem here. The individual drivers should be handling this device, > not the "generic" usb serial driver. > > What kernel version are you using? What is the vendor/product id of > your 3g modem and your ftdi_sio device? > >> But if I try to use both >> devices together just one works. >> Looking the documentation seems to me that the usbserial is made >> to suport just one device, is this true? > > Yes, it is ment to support only one "generic" device, that is true. > >> I will try to recompile the usbserial module with another name to load >> it 2 times with different parameters. >> Is there something that will prevent this idea to work ? > > If it works, your device throughput will be very slow. Use the "real" > drivers for your usb-serial devices instead (ftdi_sio and probably the > option driver). > > thanks, > > greg k-h -- 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
