Hi Fabian, Thanks for the suggestion. I have previously added the udev permissions (which includes the FT323H VID:PID pair), and the errors and usb info I showed in my original email where generated via sudo. The user is also part of the plugdev group so should have r/w access.
Best regards, Christo On Tue, Oct 20, 2020 at 7:35 PM Fabian Schwartau <fab...@opencode.eu> wrote: > Hi Christo, > > this is probably caused by permission problems. Try with sudo, if it > works you probably don't have permission to access the device. Search > for "ftdi udev" on the search engine of your choise and you should find > plenty of info. > > Best regards, > Fabian > > Am 20.10.20 um 17:45 schrieb Christo Crause: > > I'm a relatively new user of sigrok/PulseView and ran into an issue > > trying to use an FT232H on an Adafruit breakout board. When scanning > > for FDTI devices (see output below) it gives the following error (which > > seems to be similar to this bug report: > > https://sigrok.org/bugzilla/show_bug.cgi?id=1316). The key error seems > > to be "Failed to get the FTDI strings", while the lsusb output seems to > > indicate a problem listing certain descriptors such as iManufacturer, > > iProduct etc. > > > > Any guidance on how to fix this would be appreciated. > > > > I can successfully connect to and pull data from a Rigol scope. > > > > sudo sigrok-cli -l 5 -d ftdi-la --scan > > sr: [00:00.000000] log: libsigrok loglevel set to 5. > > sr: [00:00.000077] backend: libsigrok 0.5.0/4:0:0 (rt: 0.5.0/4:0:0). > > sr: [00:00.000165] backend: Libs: glib 2.54.1 (rt: 2.56.4/5604:4), > > libzip 1.1.2, libserialport 0.1.1/1:0:1 (rt: 0.1.1/1:0:1), libusb-1.0 > > 1.0.21.11156, libftdi 1.3. > > sr: [00:00.000200] backend: Host: x86_64-pc-linux-gnu, little-endian. > > sr: [00:00.000225] backend: SCPI backends: TCP, RPC, serial, USBTMC. > > sr: [00:00.000286] backend: Sanity-checking all drivers. > > sr: [00:00.000322] backend: Sanity-checking all input modules. > > sr: [00:00.000344] backend: Sanity-checking all output modules. > > sr: [00:00.000368] backend: Sanity-checking all transform modules. > > srd: libsigrokdecode loglevel set to 5. > > sr: [00:00.017041] ftdi-la: Number of FTDI devices found: 1 > > sr: [00:00.018366] ftdi-la: Failed to get the FTDI strings: -7 > > sr: [00:00.018475] hwdriver: Scan of 'ftdi-la' found 0 devices. > > > > sudo lsusb -v -d0x0403: > > > > Bus 001 Device 006: ID 0403:6014 Future Technology Devices > > International, Ltd FT232H Single HS USB-UART/FIFO IC > > Device Descriptor: > > bLength 18 > > bDescriptorType 1 > > bcdUSB 2.00 > > bDeviceClass 0 (Defined at Interface level) > > bDeviceSubClass 0 > > bDeviceProtocol 0 > > bMaxPacketSize0 64 > > idVendor 0x0403 Future Technology Devices International, Ltd > > idProduct 0x6014 FT232H Single HS USB-UART/FIFO IC > > bcdDevice 9.00 > > iManufacturer 1 (error) > > iProduct 2 (error) > > iSerial 3 (error) > > bNumConfigurations 1 > > Configuration Descriptor: > > bLength 9 > > bDescriptorType 2 > > wTotalLength 32 > > bNumInterfaces 1 > > bConfigurationValue 1 > > iConfiguration 0 > > bmAttributes 0x80 > > (Bus Powered) > > MaxPower 100mA > > Interface Descriptor: > > bLength 9 > > bDescriptorType 4 > > bInterfaceNumber 0 > > bAlternateSetting 0 > > bNumEndpoints 2 > > bInterfaceClass 255 Vendor Specific Class > > bInterfaceSubClass 255 Vendor Specific Subclass > > bInterfaceProtocol 255 Vendor Specific Protocol > > iInterface 2 (error) > > Endpoint Descriptor: > > bLength 7 > > bDescriptorType 5 > > bEndpointAddress 0x81 EP 1 IN > > bmAttributes 2 > > Transfer Type Bulk > > Synch Type None > > Usage Type Data > > wMaxPacketSize 0x0200 1x 512 bytes > > bInterval 0 > > Endpoint Descriptor: > > bLength 7 > > bDescriptorType 5 > > bEndpointAddress 0x02 EP 2 OUT > > bmAttributes 2 > > Transfer Type Bulk > > Synch Type None > > Usage Type Data > > wMaxPacketSize 0x0200 1x 512 bytes > > bInterval 0 > > Device Qualifier (for other device speed): > > bLength 10 > > bDescriptorType 6 > > bcdUSB 2.00 > > bDeviceClass 0 (Defined at Interface level) > > bDeviceSubClass 0 > > bDeviceProtocol 0 > > bMaxPacketSize0 64 > > bNumConfigurations 1 > > Device Status: 0x0000 > > (Bus Powered) > > > > Best regards, > > Christo > > > > > > _______________________________________________ > > sigrok-devel mailing list > > sigrok-devel@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/sigrok-devel > > > > > > _______________________________________________ > sigrok-devel mailing list > sigrok-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/sigrok-devel >
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