Bug 186278

Summary: Enable CONFIG_SERIAL_8250_ACPI to add hardware support
Product: [Fedora] Fedora Reporter: Dave Ludlow <dave>
Component: kernelAssignee: Dave Jones <davej>
Status: CLOSED UPSTREAM QA Contact: Brian Brock <bbrock>
Severity: medium Docs Contact:
Priority: medium    
Version: 5CC: pfrields, wtogami
Target Milestone: ---Keywords: FutureFeature
Target Release: ---   
Hardware: i386   
OS: Linux   
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Fixed In Version: Doc Type: Enhancement
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Clone Of: Environment:
Last Closed: 2006-03-24 23:06:59 UTC Type: ---
Regression: --- Mount Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Dave Ludlow 2006-03-22 17:49:55 UTC 
Description of problem:
I have an HP TC1100 tablet where the screen is a serial Wacom tablet.  If the
CONFIG_SERIAL_8250_ACPI were enabled, this hardware (and others) would be
functional.  This feature is not available as a module.

How reproducible:
Always.  Recompiling the kernel with this option enabled allows the device to
work fine.

Steps to Reproduce:
1. N/A - device is not recognized by default Fedora kernel
  
Actual results:
Device is not recognized.

Expected results:
Device should be recognized.

Additional info:
If there's no good reason for this to be off, let's turn it on.
Comment 1 Dave Jones 2006-03-24 23:06:59 UTC 
this option just affects how serial ports are discovered, and the regular
methods should work just fine for that.  The last time we switched this on, it
actually broke some working systems (The joys of trusting BIOS writers).

I did some googling.
Did you perhaps mean SERIAL_WACOM_ACPI ?  There's an out-of-tree patch that adds
that option, which sounds promising, as it has the description "Enable a wacom
digitizer on an HP TC1100"

I suggest talking with its upstream author Chris Kemp <ck231.uk> to try
and get that included in the kernel.org tree, and Fedora will pick it up on the
next rebase.