Anyone know how to get a Keyspan USA-28X USB to two port 8-pin serial adapter to work with a Raspberry Pi? It shows up under lsusb but says "no firmware." I'm guessing these needed to have firmware uploaded to them when they were plugged in?
I found an 11 year old Github repo that has Keyspan firmware, but maybe it needs to be compiled in a new kernal?
Anyone done this before?
https://github.com/adafruit/rpi-firmware/tree/master/firmware/keyspan
paulrickards
npub1kz…gq050
2025-04-13 18:02:06 UTC
Author Public Key
npub1kzs35cf9c5gj88xh5rc74rzwag262ac8mlweaat7ylxz9ar2afmsugq050Seen on
wss://relay.mostr.pubPublished at
2025-04-13 18:02:06 UTCEvent JSON
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"content": "Anyone know how to get a Keyspan USA-28X USB to two port 8-pin serial adapter to work with a Raspberry Pi? It shows up under lsusb but says \"no firmware.\" I'm guessing these needed to have firmware uploaded to them when they were plugged in?\n\nI found an 11 year old Github repo that has Keyspan firmware, but maybe it needs to be compiled in a new kernal?\n\nAnyone done this before?\n\nhttps://github.com/adafruit/rpi-firmware/tree/master/firmware/keyspan",
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