Re: USB logic analyzer problem

On Wed, Dec 21, 2022 at 11:29 AM Tomek CEDRO wrote:
> 1. # vim /etc/devfs.rules:
>  [localrules=10]
>         add path 'ugen*' mode 0660 group operator
>         add path 'usb/*'  mode 0660 group operator
>         add path 'usb' mode 0770 group operator
>
> 2.  # vim /etc/rc.conf:
>         devfs_system_ruleset="localrules"
>
> 3. # pw groupmod operator -m <your_user_name_to_use_usb>
>
> 4. # service devfs restart
>
> 5. logout and login your local user to see if access right are correct now.

With the above you should have (as my example Saleae logical analyzer):

# ls -al /dev/ugen0.11
lrw-rw----  1 root  operator  10 21 gru 11:40 /dev/ugen0.11 -> usb/0.11.0

# usbconfig -d 0.11 dump_all_desc
ugen0.11: <sigrok fx2lafw> at usbus0, cfg=0 md=HOST spd=HIGH (480Mbps)
pwr=ON (100mA)

  bLength = 0x0012
  bDescriptorType = 0x0001
  bcdUSB = 0x0200
  bDeviceClass = 0x00ff  <Vendor specific>
  bDeviceSubClass = 0x00ff
  bDeviceProtocol = 0x00ff
  bMaxPacketSize0 = 0x0040
  idVendor = 0x0925
  idProduct = 0x3881
  bcdDevice = 0x0001
  iManufacturer = 0x0001  <sigrok>
  iProduct = 0x0002  <fx2lafw>
  iSerialNumber = 0x0003  <Saleae Logic>
  bNumConfigurations = 0x0001

 Configuration index 0

    bLength = 0x0009
    bDescriptorType = 0x0002
    wTotalLength = 0x0019
    bNumInterfaces = 0x0001
    bConfigurationValue = 0x0001
    iConfiguration = 0x0000  <no string>
    bmAttributes = 0x0080
    bMaxPower = 0x0032

    Interface 0
      bLength = 0x0009
      bDescriptorType = 0x0004
      bInterfaceNumber = 0x0000
      bAlternateSetting = 0x0000
      bNumEndpoints = 0x0001
      bInterfaceClass = 0x00ff  <Vendor specific>
      bInterfaceSubClass = 0x00ff
      bInterfaceProtocol = 0x00ff
      iInterface = 0x0000  <no string>

     Endpoint 0
        bLength = 0x0007
        bDescriptorType = 0x0005
        bEndpointAddress = 0x0082  <IN>
        bmAttributes = 0x0002  <BULK>
        wMaxPacketSize = 0x0200
        bInterval = 0x0000
        bRefresh = 0x0000
        bSynchAddress = 0x0000


PulseView works out of the box, I do not even have to provide any
device hints / parameters.

SigRokCli:

% sigrok-cli --scan
The following devices were found:
demo - Demo device with 13 channels: D0 D1 D2 D3 D4 D5 D6 D7 A0 A1 A2 A3 A4
fx2lafw:conn=0.11 - Saleae Logic [S/N: Saleae Logic] with 8 channels:
D0 D1 D2 D3 D4 D5 D6 D7

% sigrok-cli -d fx2lafw:conn=0.11 --continuous
libsigrok 0.5.2
Acquisition with 8/8 channels at 20 kHz
D0:11111111 11111111 11111111 11111111 11111111 11111111 11111111 11111111
D1:00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
D2:00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
D3:11111111 11111111 11111111 11111111 11111111 11111111 11111111 11111111
D4:00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
D5:11111111 11111111 11111111 11111111 11111111 11111111 11111111 11111111

https://sigrok.org/wiki/Sigrok-cli

-- 
CeDeROM, SQ7MHZ, http://www.tomek.cedro.info