--- title: Collabora Contributions to Linux Kernel 4.9 | daily.dev description: Collabora contributed 36 patches from 11 developers to Linux Kernel 4.9, marking their highest number of individual contributors in a single kernel release.... canonical: https://daily.dev/posts/collabora-contributions-to-linux-kernel-4-9-azr2k2aqd twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Collabora Contributions to Linux Kernel 4.9 | daily.dev og:description: Collabora contributed 36 patches from 11 developers to Linux Kernel 4.9, marking their highest number of individual contributors in a single kernel release.... og:url: https://daily.dev/posts/collabora-contributions-to-linux-kernel-4-9-azr2k2aqd og:image: https://api.daily.dev/og/posts/AZr2K2AqD.png og:image:alt: Collabora Contributions to Linux Kernel 4.9 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. # Collabora Contributions to Linux Kernel 4.9 **[Collabora Blog](https://daily.dev/sources/collabora)** · 3 min read · 0 upvotes · 0 comments ## Summary Collabora contributed 36 patches from 11 developers to Linux Kernel 4.9, marking their highest number of individual contributors in a single kernel release. Work spanned the DRM and DMABUF subsystems, including explicit fencing advances, drm_bridge support for imx-ldb and RockChip devices, de-staging of the SW_SYNC validation framework, firmware upload support for the ziirave watchdog, DMA improvements for i.MX53 UARTs, a fake VMEbus for driver development, a Bluetooth SCO error code fix, and USB cdc-wdm pipeline clearing. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### What did Collabora contribute to Linux Kernel 4.9? Collabora contributed 36 patches from 11 different developers to Linux Kernel 4.9, their highest number of individual contributors in a single release. Work focused on DRM and DMABUF subsystems, including explicit fencing, SW_SYNC de-staging, drm_bridge improvements for imx-ldb and RockChip, DMA support for i.MX53 UARTs, a fake VMEbus, Bluetooth SCO error fixes, and USB cdc-wdm pipeline clearing. _Developers tracking Linux kernel subsystem progress follow upstream contribution roundups like this on daily.dev._ --- Tags: [#open-source](https://daily.dev/tags/open-source), [#linux](https://daily.dev/tags/linux) [View this post on daily.dev](https://daily.dev/posts/collabora-contributions-to-linux-kernel-4-9-azr2k2aqd) ```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":"Collabora Contributions to Linux Kernel 4.9","url":"https://daily.dev/posts/collabora-contributions-to-linux-kernel-4-9-azr2k2aqd","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/collabora-contributions-to-linux-kernel-4-9-azr2k2aqd"},"datePublished":"2026-08-11T08:56:54.446Z","dateModified":"2026-08-11T09:15:56.840Z","description":"Collabora contributed 36 patches from 11 developers to Linux Kernel 4.9, marking their highest number of individual contributors in a single kernel release....","image":"https://media.daily.dev/image/upload/s--1KxV4ohY--/f_auto/v1722860400/public/Placeholder%2007","thumbnailUrl":"https://media.daily.dev/image/upload/s--1KxV4ohY--/f_auto/v1722860400/public/Placeholder%2007","isAccessibleForFree":true,"articleSection":"Collabora Blog","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":"Collabora Blog","logo":"https://media.daily.dev/image/upload/s--ZGZ0FjqS--/f_auto,q_auto/v1786438306/logos/collabora?_a=BAMAMicg0","url":"https://daily.dev/sources/collabora"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/collabora-contributions-to-linux-kernel-4-9-azr2k2aqd","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"open-source,linux","timeRequired":"PT3M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Collabora Blog","item":"https://daily.dev/sources/collabora"},{"@type":"ListItem","position":3,"name":"Collabora Contributions to Linux Kernel 4.9"}]} {"@context":"https://schema.org","@type":"FAQPage","@id":"https://daily.dev/posts/collabora-contributions-to-linux-kernel-4-9-azr2k2aqd#faq","mainEntity":[{"@type":"Question","name":"What did Collabora contribute to Linux Kernel 4.9?","acceptedAnswer":{"@type":"Answer","text":"Collabora contributed 36 patches from 11 different developers to Linux Kernel 4.9, their highest number of individual contributors in a single release. Work focused on DRM and DMABUF subsystems, including explicit fencing, SW_SYNC de-staging, drm_bridge improvements for imx-ldb and RockChip, DMA support for i.MX53 UARTs, a fake VMEbus, Bluetooth SCO error fixes, and USB cdc-wdm pipeline clearing. Developers tracking Linux kernel subsystem progress follow upstream contribution roundups like this on daily.dev."}}]} ```