Enable new Realtek card reader

Bug #1806335 reported by Kai-Heng Feng on 2018-12-03
8
This bug affects 1 person
Affects Status Importance Assigned to Milestone
HWE Next
Undecided
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linux (Ubuntu)
Undecided
Unassigned
Nominated for Bionic by Kai-Heng Feng
Nominated for Cosmic by Kai-Heng Feng
Nominated for Disco by Kai-Heng Feng
linux-oem (Ubuntu)
Undecided
Unassigned
Nominated for Bionic by Kai-Heng Feng
Nominated for Cosmic by Kai-Heng Feng
Nominated for Disco by Kai-Heng Feng

Bug Description

[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.

AceLan Kao (acelankao) on 2018-12-03
tags: added: originate-from-1800986 stella

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1806335

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

Changed in linux (Ubuntu):
status: New → Incomplete
AceLan Kao (acelankao) wrote :

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-bionic' to 'verification-done-bionic'. If the problem still exists, change the tag 'verification-needed-bionic' to 'verification-failed-bionic'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

tags: added: verification-needed-bionic
tags: added: verification-done-bionic
removed: verification-needed-bionic
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