I am currently trying to program to this attiny85 microcontroller. However, the tutorial I was using said that I have to find the port for the USB and his was PORT=/dev/ttyS10. I know everyone’s is different, but was wondering how I do that. Been spending all night looking for it, but nothing came up.
It is being detected when using lsblk
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 003: ID 046d:c53f Logitech, Inc. USB Receiver
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub```
> Digistump Digispark is the microcontroller
Mine is at /dev/ttyUSB0
sometimes even /dev/ttyUSB1
And you can watch dmesg while pluging it in 
( Or try different USB-Ports 2.0/3.x )
I get this a lot.
[ 1437.596617] usb 2-1.2: USB disconnect, device number 123
[ 1438.173076] usb 2-1.2: new low-speed USB device number 124 using ehci-pci
[ 1438.275479] usb 2-1.2: New USB device found, idVendor=16d0, idProduct=0753, bcdDevice= 1.06
[ 1438.275500] usb 2-1.2: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 1443.360071] usb 2-1.2: USB disconnect, device number 124
[ 1443.936410] usb 2-1.2: new low-speed USB device number 125 using ehci-pci
[ 1444.038871] usb 2-1.2: New USB device found, idVendor=16d0, idProduct=0753, bcdDevice= 1.06
[ 1444.038892] usb 2-1.2: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 1447.350483] kauditd_printk_skb: 1 callbacks suppressed
[ 1447.350487] audit: type=1100 audit(1657001154.949:98): pid=12079 uid=1000 auid=1000 ses=2 msg='op=PAM:authentication grantors=pam_faillock,pam_permit,pam_faillock acct="brianb" exe="/usr/bin/sudo" hostname=? addr=? terminal=/dev/pts/1 res=success'
[ 1447.350735] audit: type=1101 audit(1657001154.949:99): pid=12079 uid=1000 auid=1000 ses=2 msg='op=PAM:accounting grantors=pam_unix,pam_permit,pam_time acct="brianb" exe="/usr/bin/sudo" hostname=? addr=? terminal=/dev/pts/1 res=success'
[ 1447.352297] audit: type=1110 audit(1657001154.949:100): pid=12079 uid=1000 auid=1000 ses=2 msg='op=PAM:setcred grantors=pam_faillock,pam_permit,pam_faillock acct="root" exe="/usr/bin/sudo" hostname=? addr=? terminal=/dev/pts/1 res=success'
[ 1447.357068] audit: type=1105 audit(1657001154.955:101): pid=12079 uid=1000 auid=1000 ses=2 msg='op=PAM:session_open grantors=pam_systemd_home,pam_limits,pam_unix,pam_permit acct="root" exe="/usr/bin/sudo" hostname=? addr=? terminal=/dev/pts/1 res=success'