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[1/4] lspci: Clarify unknown capability IDs

Message ID 152416898648.71364.15417323482028209640.stgit@bhelgaas-glaptop.roam.corp.google.com
State Not Applicable
Headers show
Series lspci: Decode capability names | expand

Commit Message

Bjorn Helgaas April 19, 2018, 8:16 p.m. UTC 
From: Bjorn Helgaas <bhelgaas@google.com>

For capabilities we don't know how to decode, we print the config address,
version, and capability ID:

  Capabilities: [220 v1] #19

This doesn't clearly identify the capability ID ("19"), whether it is a
PCI-compatible Capability ID or an Extended Capability ID (although you can
infer this by whether the address is 2 or 3 digits), or the fact that the
ID is printed in hex, which makes it hard to parse this manually.

Add a label ("Capability ID" or "Extended Capability ID") and print a "0x"
prefix so it's clear the value is in hex:

  Capabilities: [220 v1] Extended Capability ID 0x19

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 ls-caps.c  |    2 +-
 ls-ecaps.c |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/ls-caps.c b/ls-caps.c
index 3135224..bc7829c 100644
--- a/ls-caps.c
+++ b/ls-caps.c
@@ -1599,7 +1599,7 @@  show_caps(struct device *d, int where)
 	      cap_ea(d, where, cap);
 	      break;
 	    default:
-	      printf("#%02x [%04x]\n", id, cap);
+	      printf("Capability ID %#02x [%04x]\n", id, cap);
 	    }
 	  where = next;
 	}
diff --git a/ls-ecaps.c b/ls-ecaps.c
index 800a032..cb3d46d 100644
--- a/ls-ecaps.c
+++ b/ls-ecaps.c
@@ -802,7 +802,7 @@  show_ext_caps(struct device *d, int type)
 	    cap_ptm(d, where);
 	    break;
 	  default:
-	    printf("#%02x\n", id);
+	    printf("Extended Capability ID %#02x\n", id);
 	    break;
 	}
       where = (header >> 20) & ~3;