[pve-devel] [PATCH qemu-server 1/3] copy scan_usb from PVE::Storage
Dominik Csapak
d.csapak at proxmox.com
Thu Nov 15 15:30:44 CET 2018
it makes more sense to have it here rather than in storage
Signed-off-by: Dominik Csapak <d.csapak at proxmox.com>
---
PVE/QemuServer/USB.pm | 58 +++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 58 insertions(+)
diff --git a/PVE/QemuServer/USB.pm b/PVE/QemuServer/USB.pm
index 3d65d38..f51329b 100644
--- a/PVE/QemuServer/USB.pm
+++ b/PVE/QemuServer/USB.pm
@@ -4,6 +4,7 @@ use strict;
use warnings;
use PVE::QemuServer::PCI qw(print_pci_addr);
use PVE::JSONSchema;
+use PVE::Tools qw(file_read_firstline);
use base 'Exporter';
our @EXPORT_OK = qw(
@@ -124,4 +125,61 @@ sub print_usbdevice_full {
return $usbdevice;
}
+# idea is from usbutils package (/usr/bin/usb-devices) script
+sub __scan_usb_device {
+ my ($res, $devpath, $parent, $level) = @_;
+
+ return if ! -d $devpath;
+ return if $level && $devpath !~ m/^.*[-.](\d+)$/;
+ my $port = $level ? int($1 - 1) : 0;
+
+ my $busnum = int(file_read_firstline("$devpath/busnum"));
+ my $devnum = int(file_read_firstline("$devpath/devnum"));
+
+ my $d = {
+ port => $port,
+ level => $level,
+ busnum => $busnum,
+ devnum => $devnum,
+ speed => file_read_firstline("$devpath/speed"),
+ class => hex(file_read_firstline("$devpath/bDeviceClass")),
+ vendid => file_read_firstline("$devpath/idVendor"),
+ prodid => file_read_firstline("$devpath/idProduct"),
+ };
+
+ if ($level) {
+ my $usbpath = $devpath;
+ $usbpath =~ s|^.*/\d+\-||;
+ $d->{usbpath} = $usbpath;
+ }
+
+ my $product = file_read_firstline("$devpath/product");
+ $d->{product} = $product if $product;
+
+ my $manu = file_read_firstline("$devpath/manufacturer");
+ $d->{manufacturer} = $manu if $manu;
+
+ my $serial => file_read_firstline("$devpath/serial");
+ $d->{serial} = $serial if $serial;
+
+ push @$res, $d;
+
+ foreach my $subdev (<$devpath/$busnum-*>) {
+ next if $subdev !~ m|/$busnum-[0-9]+(\.[0-9]+)*$|;
+ __scan_usb_device($res, $subdev, $devnum, $level + 1);
+ }
+
+};
+
+sub scan_usb {
+
+ my $devlist = [];
+
+ foreach my $device (</sys/bus/usb/devices/usb*>) {
+ __scan_usb_device($devlist, $device, 0, 0);
+ }
+
+ return $devlist;
+}
+
1;
--
2.11.0
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