ISOTPRECV(1)

📦
version 2023.03 · 3 versions
, in ubuntu resolute, ubuntu stonking

💖 ISOTPRECV — bestie's guide to the receive side 💖

okay so like. hi. you found isotprecv, the manual page for isotprecv 2023.03-1build1. she's part of the User Commands girlies and she is literally here to catch ISO-TP frames for you. no cap. 🦋

✨ SYNOPSIS ✨

isotprecv [options] <CAN interface>

that's it. that's the whole vibe. you give her a CAN interface and some options, she does her thing. periodt. 💅

🌸 OPTIONS 🌸

okay this is the part you actually came for, so let's go one by one, no skipping, i would never do that to you 🫶

  • -s <can_id> — the source can_id. if you're using extended IDs, use 8 digits, okay? don't embarrass me with 3. 😭
  • -d <can_id> — the destination can_id. same deal, extended IDs want 8 digits too. ✨
  • -x <addr>[:<rxaddr>] — extended addressing! and if you want, you can give a separate rxaddr after the colon. she's flexible like that. 💜
  • -p [tx]:[rx] — sets AND enables your padding bytes, both tx and rx. yes, setting it and enabling it are the same action here, iconic behaviour honestly. 🎀
  • -P <mode> — check the rx padding! modes are (l)ength, (c)ontent, or (a)ll. pick your fighter. 🔥
  • -b <bs> — blocksize. and listen, 0 = off. that's the important part. 🍓
  • -m <val> — STmin, in ms or ns. see the spec for the deets, i'm not gonna make stuff up bestie. 📖
  • -f <time ns> — force the rx STmin value, in nanoseconds. forceful. main character energy. 👑
  • -w <num> — max number of wait frame transmissions. keep her on a leash. 😌
  • -l — loop mode! do NOT exit after pdu reception. she just keeps going. she's committed. 💀
  • -L <mtu>:<tx_dl>:<tx_flags> — link layer options, for CAN FD. fancy. 🌈

🧚 THE TEA (a.k.a. the important bit at the bottom) 🧚

CAN IDs and addresses are given and expected in hexadecimal values. yes, hex. hex is the moment. ⭐

the pdu data gets written on STDOUT as space separated ASCII hex values. so like, that's where you're reading from. that's the output. she's not hiding it from you. 💖

ngl if you forget the hex thing you're gonna have a bad time. not judgement, just facts. 🙈

🫶 SIGN-OFF 🫶

that's the whole page bestie, go forth and receive. this was isotprecv 2023.03-1build1, dated December 2025, living under ISOTPRECV(1) in the User Commands section. slay, bye 💅✨🎀

📦 where this page comes from