APPLIED/cmnt: [SRU] [B/C/D/Unstable] [PATCH 0/2] Enable new Realtek card reader

Khaled Elmously khalid.elmously at canonical.com
Sun Dec 30 04:49:20 UTC 2018


Patch #1 was already present in D and unstable



On 2018-12-03 14:27:18 , Kai-Heng Feng wrote:
> BugLink: https://bugs.launchpad.net/bugs/1806335
> 
> [Impact]
> USB Storage based Realtek card reader doesn't work, because the
> usb-storage module tries to use it in UAS mode instead of using
> "ums-realtek".
> 
> [Fix]
> Add new IDs to ums-realtek driver.
> In addition to that, we add a new module knob, "enable_mmc=", to
> enable/disable MMC, as vendors may not pay MMC royalties. "enable_mmc"
> defaults to 1.
> 
> [Test]
> After applying the patch, the card reader works, and verified
> "enable_mmc=" can enable/disable MMC support.
> 
> [Regression Potential]
> Minimal. This SRU enables two specific card readers that don't work as
> UAS, the new module knob only introduces new behavior when enable_mmc=0.
> 
> Kai-Heng Feng (2):
>   USB: usb-storage: Add new IDs to ums-realtek
>   UBUNTU: SAUCE: (noup) USB: usb-storage: Make MMC support optional on
>     ums-realtek
> 
>  drivers/usb/storage/realtek_cr.c      | 36 +++++++++++++++++++++++++++
>  drivers/usb/storage/unusual_realtek.h | 10 ++++++++
>  2 files changed, 46 insertions(+)
> 
> -- 
> 2.17.1
> 
> 
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