On Thu, Dec 07, 2017 at 07:24:35PM +0000, Michael Drake wrote:
> On 07/12/17 17:26, Greg KH wrote:
> > On Thu, Dec 07, 2017 at 05:14:10PM +0000, Michael Drake wrote:
> > > On 07/12/17 15:16, Greg KH wrote:
> > > > On Thu, Dec 07, 2017 at 04:01:23PM +0100, Greg KH wrote:
> > > > > Oops, I should have tested the code, it now crashes for me with the
> > > > > following error:
> > > > > Floating point exception (core dumped)
> > > > >
> > > > > Do you see this as well?
> > >
> > > No, I don't see that.
> > >
> > > > And it's crashing on my USB audio device. Here's the output of it from
> > > > the "old" lsusb output.
> > >
> > > [snip]
> > >
> > > Does it still crash with the warning fixes I posted? If so I'll
> > > look in detail tomorrow.
> >
> > I will check when I get home tonight, I don't have the USB device on me
> > at the moment.
>
> Thank you. I believe I've guessed the problem and sent a patch.
Ok, that now works.
But there is a difference in the "old" and "new" outputs, here's a diff
of a full -v output of my laptop and a bunch of USB devices plugged in,
showing the fields that now look different.
The big one is the change from "streaming" to "control", is that
correct?
thanks,
greg k-h
--- lsusb-v.orig 2017-12-07 21:01:26.153185002 +0100
+++ lsusb-v.new 2017-12-07 21:01:32.806517978 +0100
@@ -1110,9 +1110,9 @@
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdADC 1.00
- wTotalLength 0x0028
+ wTotalLength 40
bInCollection 1
- baInterfaceNr(0) 1
+ baInterfaceNr( 0) 1
AudioControl Interface Descriptor:
bLength 12
bDescriptorType 36
@@ -1142,10 +1142,10 @@
bUnitID 13
bSourceID 1
bControlSize 1
- bmaControls(0) 0x01
+ bmaControls( 0) 0x01
Mute Control
- bmaControls(1) 0x00
- bmaControls(2) 0x00
+ bmaControls( 1) 0x00
+ bmaControls( 2) 0x00
iFeature 0
Interface Descriptor:
bLength 9
@@ -1173,7 +1173,7 @@
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 1
bDelay 1 frames
- wFormatTag 0x0001 PCM
+ wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 20
bDescriptorType 36
@@ -1199,14 +1199,14 @@
bInterval 4
bRefresh 0
bSynchAddress 133
- AudioStreaming Endpoint Descriptor:
+ AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x01
Sampling Frequency
bLockDelayUnits 0 Undefined
- wLockDelay 0x0000
+ wLockDelay 0 Undefined
Endpoint Descriptor:
bLength 9
bDescriptorType 5
@@ -1235,7 +1235,7 @@
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 1
bDelay 1 frames
- wFormatTag 0x0001 PCM
+ wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 20
bDescriptorType 36
@@ -1261,14 +1261,14 @@
bInterval 4
bRefresh 0
bSynchAddress 133
- AudioStreaming Endpoint Descriptor:
+ AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x01
Sampling Frequency
bLockDelayUnits 0 Undefined
- wLockDelay 0x0000
+ wLockDelay 0 Undefined
Endpoint Descriptor:
bLength 9
bDescriptorType 5
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