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Bug#1041678: at24 0-005…: supply vcc not found, using dummy regulator

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Package: linux-image-6.1.0-10-amd64
Version: 6.1.37-1
Severity: wishlist
Control: affects -1 src:linux

In my journal I discovered a bunch of orange warnings of the form “at24 
0-005…: supply vcc not found, using dummy regulator”:

Jul 22 00:07:06 AnonymizedMachineName kernel: cdc_acm: USB Abstract 
Control Model driver for USB modems and ISDN adapters
Jul 22 00:07:06 AnonymizedMachineName kernel: input: PC Speaker as 
/devices/platform/pcspkr/input/input9
Jul 22 00:07:06 AnonymizedMachineName kernel: usbcore: registered new 
interface driver cdc_mbim
Jul 22 00:07:06 AnonymizedMachineName kernel: at24 0-0050: supply vcc 
not found, using dummy regulator
Jul 22 00:07:06 AnonymizedMachineName kernel: at24 0-0050: 256 byte spd 
EEPROM, read-only
Jul 22 00:07:06 AnonymizedMachineName kernel: at24 0-0051: supply vcc 
not found, using dummy regulator
Jul 22 00:07:06 AnonymizedMachineName kernel: at24 0-0051: 256 byte spd 
EEPROM, read-only
Jul 22 00:07:06 AnonymizedMachineName kernel: at24 0-0052: supply vcc 
not found, using dummy regulator
Jul 22 00:07:06 AnonymizedMachineName kernel: iTCO_vendor_support: 
vendor-support=0
Jul 22 00:07:06 AnonymizedMachineName kernel: at24 0-0052: 256 byte spd 
EEPROM, read-only
Jul 22 00:07:06 AnonymizedMachineName kernel: at24 0-0053: supply vcc 
not found, using dummy regulator
Jul 22 00:07:06 AnonymizedMachineName kernel: at24 0-0053: 256 byte spd 
EEPROM, read-only
Jul 22 00:07:06 AnonymizedMachineName kernel: mc: Linux media interface: 
v0.10

First, I asked myself what I am being warned about, and it took me quite 
some time to find out what “vcc” means.  Is actually “Vcc”, the voltage 
common collector as on 
http://upload.wikimedia.org/wikipedia/commons/4/4b/Voltage_subscripts.png 
, meant (where “cc” or “CC” is sometimes typeset as a subscript)?  If 
so, write this way, i.e., “Vcc” (or, as a proper abbreviation, “VCC”). 
The term “vcc” in small letters means to me, for example, the 
command-line call of the verifying C compiler; to other folks “vcc” 
might mean something else.  If “vcc” here is NOT the voltage common 
collector, consider writing the full term instead of the abbreviation. 
(Similar goes for “spd”: if it's a proper abbreviation and not a typo, 
consider capitalizing all the letters. Further, even “SPD“ might mean 
many things, from “Serial Presence Detect” to “Surge Protection Device”, 
so if the context doesn't make it clear, write the full term instead of 
the abbreviation.)

Second, are these orange messages real warnings (i.e., they foretell 
potential havoc) or only informational?  In the real case, what could go 
wrong?  In the purely informational case, consider making them normal 
gray-white messages, so that the user is nor really feeling warned or 
bothered.

Gratefully,
AlMa

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Bug#1041678: at24 0-005…: supply vcc not found, using dummy regulator AlMa <AlMa0@ro.ru> - 2023-07-22 03:10 +0200
  Bug#1041678: marked as done (at24 0-005…:  supply vcc not found, using dummy regulator) "Debian Bug Tracking System" <owner@bugs.debian.org> - 2023-08-01 01:20 +0200

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