From aa1e68e9fef31dc17991d46523bbf3112d0959d4 Mon Sep 17 00:00:00 2001
From: cinap_lenrek <cinap_lenrek@felloff.net>
Date: Mon, 9 Dec 2024 01:30:16 +0000
Subject: [PATCH] nusbrd: pass $usbdebug to nusb/usbd

This can be usefull for debugging usb enumeration issues from boot,
if one has the chance to pass parameters on the bootloader.

It was initially suggested in a troubleshooting session todo as
a quick modification, but it can be usefull in general.
---
 sys/man/8/plan9.ini   | 10 +++++++++-
 sys/src/9/boot/nusbrc |  2 +-
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/sys/man/8/plan9.ini b/sys/man/8/plan9.ini
index 7f5752dfb..325dadcbf 100755
--- a/sys/man/8/plan9.ini
+++ b/sys/man/8/plan9.ini
@@ -448,7 +448,7 @@ will appear when using the WIFI interface for netbooting.
 To avoid the prompt, the
 .I password
 can be specified with the boot parameter above.
-.SS \fLwpaopts=\fivalue\fP
+.SS \fLwpaopts=\fIvalue\fP
 Pass
 .I value
 as additional options to
@@ -956,6 +956,14 @@ When defined,
 .IR nusbrc (8)
 will use the dynamically assigned usb device address to name
 usb devices instead of the device unique name.
+.SS \fLusbdebug=\fIvalue\fP
+When defined, pass
+.I value
+as arguments to
+.IR usbd (4).
+Usually used to pass
+.B -d
+flags for verbose debug printing.
 .SS VIDEO
 .SS \fL*nocga=\fP
 This inhibits the kernel and
diff --git a/sys/src/9/boot/nusbrc b/sys/src/9/boot/nusbrc
index 48b0fbec9..f15ebcec8 100755
--- a/sys/src/9/boot/nusbrc
+++ b/sys/src/9/boot/nusbrc
@@ -5,7 +5,7 @@ if(! bind -a '#u' /dev)
 mkdir -p -m 700 '#σc/usb'
 mkdir -p -m 700 '#σc/usbnet'
 
-if(! nusb/usbd)
+if(! nusb/usbd $usbdebug)
 	exit
 
 @{