[Bluez-devel] how well supported is hci_read_rssi and hci_read_link_quality?

[Albert Huang <ashuang@gmail.com>]

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Hello,

Does anyone have a rough estimate, or even a list, of the devices that
support hci_read_rssi and hci_read_link_quality?  Am I correct in
assuming that some devices supoprt it and some don't?  For example, a
program that reads rssi and link quality that works beautifully on an
x86 with a d-link usb bluetooth dongle doesn't seem to work at all on
an HP ipaq h5550.  On the ipaq, the link quality is always 0 and rssi
is always 255.

The attached patch changes cmd_lq in hcitool.c to print out an
unsigned integer instead of a signed integer.

thanks.
-albert

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Index: tools/hcitool.c
===================================================================
RCS file: /cvsroot/bluez/utils/tools/hcitool.c,v
retrieving revision 1.44
diff -u -r1.44 hcitool.c
--- tools/hcitool.c	12 Jun 2004 09:41:17 -0000	1.44
+++ tools/hcitool.c	23 Jun 2004 05:17:27 -0000
@@ -982,7 +982,7 @@
 				rp.status);
 		exit(1);
 	}
-	printf("Link quality: %d\n", rp.link_quality);
+	printf("Link quality: %u\n", rp.link_quality);
 
 	close(dd);
 	free(cr);