es58x_parse_sw_version(9)

💖 es58x_parse_sw_version(9) 💖

okay so bestie, this one's from the Kernel API Manual and it's literally about digging the version numbers out of a USB string. buckle up 🎀

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✨ NAME ✨

es58x_parse_sw_version — extracts the boot loader or firmware version, that's the whole gig 💅

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🦋 SYNOPSIS 🦋

int es58x_parse_sw_version (struct es58x_device *es58x_dev , const char
*prod_info , const char *prefix );

yeah it takes three things and gives you back an int, no cap ✨

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🌸 ARGUMENTS 🌸

• es58x_dev — your ES58X device, the main character of this whole function 🫶
• prod_info — the USB custom string that the device itself hands back to you, like a lil note it wrote
• prefix — this one picks which info gets parsed. set it to "FW" for the firmware version, or to "BL" for the bootloader version. that's it, that's the switch 👑

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💜 DESCRIPTION 💜

so the prod_info string is lowkey a little soup 🍓 — it's got the firmware version and the bootloader version in there, all prefixed by a magic string and concatenated with other numbers. it's giving chaos but it's fine.

depending on the device, the firmware (bootloader) format is either:

• "FW_Vxx.xx.xx" (or "BL_Vxx.xx.xx")
• "FW:xx.xx.xx" (or "BL:xx.xx.xx")

where x is a digit, obviously 💅

and prod_info must contain the common part of those prefixes: "FW" or "BL". like, the actual shared bit, not the whole fancy thing.

then it parses prod_info and stores the version number in es58x_dev.firmware_version or es58x_dev.bootloader_version — which one depends on the prefix value you passed in. iconic behaviour, honestly 🌈

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🔥 RETURN 🔥

• zero on success — slay, we got it 🎉
• -EINVAL if prefix contains an invalid value — bestie, you sent the wrong word 😭
• -EBADMSG if prod_info could not be parsed — the string said nope 💀

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👑 SEE ALSO 👑

• Kernel file ./drivers/net/can/usb/etas_es58x/es58x_devlink.c
• es58x_parse_hw_rev(9)
• es58x_parse_product_info(9)
• es58x_sw_version_is_valid(9)
• es58x_hw_revision_is_valid(9)
• es58x_devlink_info_get(9)

go read the whole friend group, they're all connected fr fr 🧚

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ngl if you're calling this and ignoring the return value, the version might just silently stay stale. vibe check your error handling, bestie 🙈

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mwah 💖 that's the whole page! brought to you from ./drivers/net/can/usb/etas_es58x, dated October 2026 — catch you in the next manpage, bestie! 🎀✨🦋