--- title: Linux takes one step closer to working perfectly on your... description: A new Linux kernel patch adds initial USB4 and Thunderbolt support for Apple Silicon M1, M2, and M3 SoCs, targeting the ACIO block that houses the USB4 router... canonical: https://daily.dev/posts/linux-takes-one-step-closer-to-working-perfectly-on-your-mac-with-a-patch-for-usb4-and-thunderbolt-p-24hev6fwc twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Linux takes one step closer to working perfectly on your Mac with a patch for USB4 and Thunderbolt ports | daily.dev og:description: A new Linux kernel patch adds initial USB4 and Thunderbolt support for Apple Silicon M1, M2, and M3 SoCs, targeting the ACIO block that houses the USB4 router... og:url: https://daily.dev/posts/linux-takes-one-step-closer-to-working-perfectly-on-your-mac-with-a-patch-for-usb4-and-thunderbolt-p-24hev6fwc og:image: https://api.daily.dev/og/posts/24HEv6fwC.png og:image:alt: Linux takes one step closer to working perfectly on your Mac with a patch for USB4 and Thunderbolt ports og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Linux takes one step closer to working perfectly on your Mac with a patch for USB4 and Thunderbolt ports **[XDA Developers](https://daily.dev/sources/xda-developers)** · 2 min read · 0 upvotes · 0 comments ## Summary A new Linux kernel patch adds initial USB4 and Thunderbolt support for Apple Silicon M1, M2, and M3 SoCs, targeting the ACIO block that houses the USB4 router and a Cortex-M3 co-processor on each Type-C port. Currently only XDomain connections and USB3-over-USB4 tunnels work, while PCIe and DisplayPort tunneling and suspend support still require further reverse-engineering work. The patch is under testing for mainline inclusion, with a possible but unconfirmed landing before Linux 7.4. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### Does Linux support USB4 and Thunderbolt ports on Apple Silicon Macs? A kernel patch under testing adds initial USB4 and Thunderbolt support for Apple Silicon M1, M2, and M3 SoCs by targeting the ACIO (Apple Converged I/O) block, which contains a Cortex-M3 co-processor and the USB4 router hardware on each Type-C port. Currently only XDomain connections and USB3-over-USB4 tunneling work. _daily.dev helps Linux-on-Mac tinkerers track kernel progress on hardware support like this._ ### What USB4 and Thunderbolt features are still missing in the new Linux Apple Silicon patch? PCIe and DisplayPort tunneling are not yet supported because they require additional reverse-engineering work that hasn't been completed. Suspend is also unsupported, and the system must actively prevent suspending during an active USB4 connection to avoid resuming into an SError. _Follow ongoing kernel patch work like this on daily.dev before relying on it for a daily-driver Mac setup._ ## Similar posts on daily.dev - [Linux Patches Updated For Apple Silicon USB3 Support](https://daily.dev/posts/linux-patches-updated-for-apple-silicon-usb3-support-1hcbjlyfj) · Phoronix · 1 upvotes · 0 comments - [Linux 7.0 Apple Silicon Device Tree Updates Have All The Bits For USB Type-C Ports](https://daily.dev/posts/linux-7-0-apple-silicon-device-tree-updates-have-all-the-bits-for-usb-type-c-ports-wzlncocpq) · Phoronix · 0 upvotes · 0 comments - [Linux 6.19 Delivers Working USB3 Support For Apple Silicon Devices](https://daily.dev/posts/linux-6-19-delivers-working-usb3-support-for-apple-silicon-devices-k8wup0nia) · Phoronix · 0 upvotes · 0 comments --- Tags: [#linux](https://daily.dev/tags/linux) [View this post on daily.dev](https://daily.dev/posts/linux-takes-one-step-closer-to-working-perfectly-on-your-mac-with-a-patch-for-usb4-and-thunderbolt-p-24hev6fwc) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Linux takes one step closer to working perfectly on your Mac with a patch for USB4 and Thunderbolt ports","url":"https://daily.dev/posts/linux-takes-one-step-closer-to-working-perfectly-on-your-mac-with-a-patch-for-usb4-and-thunderbolt-p-24hev6fwc","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/linux-takes-one-step-closer-to-working-perfectly-on-your-mac-with-a-patch-for-usb4-and-thunderbolt-p-24hev6fwc"},"datePublished":"2026-08-31T16:18:04.364Z","dateModified":"2026-08-31T16:39:54.586Z","description":"A new Linux kernel patch adds initial USB4 and Thunderbolt support for Apple Silicon M1, M2, and M3 SoCs, targeting the ACIO block that houses the USB4 router...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/1cf5c5802404e3bd45dda992da1812db?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/1cf5c5802404e3bd45dda992da1812db?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"XDA Developers","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"XDA Developers","logo":"https://media.daily.dev/image/upload/s--kCg6yyAP--/f_auto,q_auto/v1774964407/logos/xda-developers?_a=BAMAMiWQ0","url":"https://daily.dev/sources/xda-developers"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/linux-takes-one-step-closer-to-working-perfectly-on-your-mac-with-a-patch-for-usb4-and-thunderbolt-p-24hev6fwc","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"linux","timeRequired":"PT2M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"XDA Developers","item":"https://daily.dev/sources/xda-developers"},{"@type":"ListItem","position":3,"name":"Linux takes one step closer to working perfectly on your Mac with a patch for USB4 and Thunderbolt ports"}]} {"@context":"https://schema.org","@type":"FAQPage","@id":"https://daily.dev/posts/linux-takes-one-step-closer-to-working-perfectly-on-your-mac-with-a-patch-for-usb4-and-thunderbolt-p-24hev6fwc#faq","mainEntity":[{"@type":"Question","name":"Does Linux support USB4 and Thunderbolt ports on Apple Silicon Macs?","acceptedAnswer":{"@type":"Answer","text":"A kernel patch under testing adds initial USB4 and Thunderbolt support for Apple Silicon M1, M2, and M3 SoCs by targeting the ACIO (Apple Converged I/O) block, which contains a Cortex-M3 co-processor and the USB4 router hardware on each Type-C port. 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