* kernel 5.9.14 USB scanner detection fails
@ 2020-12-14 10:36 Joachim Schwender
2020-12-14 11:15 ` Greg KH
0 siblings, 1 reply; 2+ messages in thread
From: Joachim Schwender @ 2020-12-14 10:36 UTC (permalink / raw)
To: linux-usb
lsusb lists my scanner:
Bus 001 Device 002: ID 04a9:190f Canon, Inc. CanoScan LiDE 220
kernel 4.9.14:
sane-find-scanner or scanimage -L does not detect the scanner.
lsusb still shows the above line.
kernel 4.9.12:
with the same .config compiled worked as expected, scanner is detected
and works.
--
Joachim Schwender
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: kernel 5.9.14 USB scanner detection fails
2020-12-14 10:36 kernel 5.9.14 USB scanner detection fails Joachim Schwender
@ 2020-12-14 11:15 ` Greg KH
0 siblings, 0 replies; 2+ messages in thread
From: Greg KH @ 2020-12-14 11:15 UTC (permalink / raw)
To: Joachim Schwender; +Cc: linux-usb
On Mon, Dec 14, 2020 at 11:36:17AM +0100, Joachim Schwender wrote:
> lsusb lists my scanner:
> Bus 001 Device 002: ID 04a9:190f Canon, Inc. CanoScan LiDE 220
>
>
> kernel 4.9.14:
> sane-find-scanner or scanimage -L does not detect the scanner.
> lsusb still shows the above line.
>
> kernel 4.9.12:
> with the same .config compiled worked as expected, scanner is detected
> and works.
"4.9" or "5.9"?
And can you run 'git bisect' between the two kernel releases to find the
offending commit that causes the problem?
thanks,
greg k-h
^ permalink raw reply [flat|nested] 2+ messages in thread
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2020-12-14 10:36 kernel 5.9.14 USB scanner detection fails Joachim Schwender
2020-12-14 11:15 ` Greg KH
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