I've made complementary tests.
With the HP PSC 1610 printer (printer, scanner and SD card reader)
switched off when I insert a USB key or switch on a USB disk colord
write no messages and with cups and colord and colord-sane running.
On a PC wich is not connect to the scanner/printer there are no messages
when a USB disk is connected and with colord-sane running.
I think with these observations that your explanation is not complete,
it does not answer why there are messages only if my printer/scanner is
connected and switched on.
Best regards
Francois
On 04/06/2012 07:53, Christopher James Halse Rogers wrote:
severity 674710 wishlist
quit
Hello,
When I switch on an USB disk I obtain the errors hereafter in syslog :
Jun 2 23:34:01 mcfm4 colord-sane: io/hpmud/musb.c 139: unable
get_string_descriptor -1: Operation not permitted
Jun 2 23:34:01 mcfm4 colord-sane: io/hpmud/musb.c 2040: invalid product id
string ret=-1
Jun 2 23:34:01 mcfm4 colord-sane: io/hpmud/musb.c 139: unable
get_string_descriptor -1: Operation not permitted
Jun 2 23:34:02 mcfm4 colord-sane: io/hpmud/musb.c 2045: invalid serial id
string ret=-1
Jun 2 23:34:02 mcfm4 colord-sane: io/hpmud/musb.c 139: unable
get_string_descriptor -1: Operation not permitted
Jun 2 23:34:02 mcfm4 colord-sane: io/hpmud/musb.c 2050: invalid manufacturer
string ret=-1
I obtain the same errors when I switch on my HP PSC 1610 printer which have
a card reader in it.
This appears to be colord-sane identifying the presence of a new USB
device and trying to probe to see if it's a USB scanner. colord-sane
deliberately doesn't have permission to do this for arbitrary USB
devices, just things that we identify as scanners.
This (should be) is harmless, but it could be silenced. Probably by only
attempting to probe devices udev knows to be scanners.
--
Francois Mescam Tel:+33 6 16 05 77 61
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