Bug 336381

Summary: Mvox Minivox MV100 usb speaker/mic does not work in fedora
Product: [Fedora] Fedora Reporter: Sony K. Philip <sonz>
Component: kernelAssignee: Kernel Maintainer List <kernel-maint>
Status: CLOSED CURRENTRELEASE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: low Docs Contact:
Priority: low    
Version: 7   
Target Milestone: ---   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: fedora 8 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2007-11-16 09:16:05 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description Sony K. Philip 2007-10-17 16:34:33 UTC
Description of problem:
Minivox mv100 USB speakerphone/mic 
does not detect properly.

Version-Release number of selected 
component (if applicable):
kernel-2.6.22.9-91_1.fc7

How reproducible:
Always

Steps to Reproduce:
1. Plug device into USB port
2. dmesg output gives:
 usb 1-1: new full speed USB device 
using uhci_hcd and address 5
Oct 17 21:59:55 xena kernel: usb 1-1: 
configuration #1 chosen from 1 choice
Oct 17 21:59:55 xena kernel: invalid 
SELECTOR UNIT descriptor 7
Oct 17 21:59:55 xena kernel: snd-usb-
audio: probe of 1-1:1.0 failed with 
error -5
Oct 17 21:59:55 xena kernel: usbcore: 
registered new interface driver snd-
usb-audio


  
Actual results:
Device is not detected.

Expected results:
Device should be detected by ALSA


Additional info:
Patch to sound/usb/usbmixer.c 

1486c1486,1487
< if (! num_ins || desc[0] < 6 + 
num_ins) {
---
> /* the magic number is '5'. */
> if (! num_ins || desc[0] < 5 + 
num_ins) {

may fix the problem as reported at 
https://bugs.launchpad.net/ubuntu/
+source/alsa-lib/+bug/26683

Comment 1 Sony K. Philip 2007-11-16 09:16:05 UTC
It works in Fedora8 now! Thanks a lot.:-)