From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephen Hemminger <stephen@networkplumber.org>
Subject: Fw: [Bug 195217] New: irda doesn't work
Date: Sat, 1 Apr 2017 16:42:51 -0700
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Begin forwarded message:

Date: Sat, 01 Apr 2017 22:02:08 +0000
From: bugzilla-daemon@bugzilla.kernel.org
To: stephen@networkplumber.org
Subject: [Bug 195217] New: irda doesn't work


https://bugzilla.kernel.org/show_bug.cgi?id=195217

            Bug ID: 195217
           Summary: irda doesn't work
           Product: Networking
           Version: 2.5
    Kernel Version: 4.9.X, 4.10.X, 4.11-rcX
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Other
          Assignee: stephen@networkplumber.org
          Reporter: jb_69100@yahoo.com
        Regression: No

keyword : irda, MCS7780, networking, SIOCSIFFLAGS


Unable to run irda0 with kernel greater than 4.8.17
"ifconfig irda0 up" works with kernel 4.8.17 but fails with kernel 4.9.X,
4.10.X and 4.11-rcX. (SIOCSIFFLAGS: Ressource temporairement non disponible)


________________________________________________
Debian Release: 9.0
Architecture: amd64 (x86_64)
Kernel: Linux 4.10.8---2017-03-31.15h31mn (SMP w/8 CPU cores)


root@myPC:/# lsusb | grep MCS7780                                               
Bus 006 Device 002: ID 9710:7780 MosChip Semiconductor MCS7780 4Mbps Fast IrDA
Adapter

root@myPC:/# ifconfig irda0
irda0: flags=128<NOARP>  mtu 2048
        irda 00:00:00:00  txqueuelen 8  (IrLAP)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

root@myPC:/# ifconfig irda0 up
SIOCSIFFLAGS: Ressource temporairement non disponible

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