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If I print the USB property of a device I own with the following command, I get the following output

$ udevadm info --no-pager /sys/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.3 P: /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.3 M: 1-1.3 R: 3 U: usb T: usb_device D: c 189:12 N: bus/usb/001/013 L: 0 // lot of other properties

I'm interested into the M line. This page says it's Device name in /sys/ (the last component of "P:")

To get it into a script, I run

udevadm info --no-pager "/sys/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.3" | grep "^M:" | cut -d ':' -f 2 | tr -d ' '

Works, but feel hacky.

I'm able to get other properties in a much nicer way with query argument

udevadm info -q property --property=ID_PATH --value /sys/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.3

man page says -q can be among name, symlink, path, property, all. None of them get me what I want.

Is there a way to get it in a similar way to the other properties, without using grep & cut. Something link

udevadm info -q XXX --value /device
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  • I've edited to help clarify what I'm looking for Commented Sep 24 at 19:23
  • it would make more sense to ask How to get it in a similar way to the other properties,... Commented Sep 24 at 19:31
  • I'm not sure what you are refering to. The title of question ? Commented Sep 25 at 8:14
  • On a side note: grep "^M:" | cut -d ':' -f 2 | tr -d ' ' can be simplified to grep -Po '^M:\s+\K.*$' or sed -nE 's/^M:\s+(.*)$/\1/p' or awk '/^M:/{print $2}' or perl -nle 'print if s/^M:\s+(.*)$/\1/' ... and IMHO what you did isn't "hacky", but rather normal text processing. Commented Sep 25 at 11:03
  • I guess I'm just surprised this line is not available to query on demand but shown but everything is asked. Commented Sep 25 at 11:25

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