<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Fri, Oct 23, 2015 at 1:14 PM, Karl Newman <span dir="ltr"><<a href="mailto:newmank1@asme.org" target="_blank">newmank1@asme.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div dir="ltr"><div><div class="h5"><div class="gmail_extra"><div class="gmail_quote">On Fri, Oct 23, 2015 at 7:56 AM, Kirk Bocek <span dir="ltr"><<a href="mailto:t004@kbocek.com" target="_blank">t004@kbocek.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><span><br>
On 10/22/2015 8:56 PM, Jerry Rubinow wrote:<br>
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Kirk, I checked the 4.2.4 and 4.3-rc6 kernel source and it does not have the fix. I imagine this is because it may only be an issue with the combination of Liva's weird USB hardware and particular types of IR receivers, and it's not on the radar. I looked through the link I sent you and it actually doesn't have the right fix (the one that worked for me). Here it is simply.<br>
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In drivers/usb/core/config.c, in the default case of the switch statement at line 219 (in 4.2.4 anyway), there is a line "n = 32;". Change it to "n = 10;". Here's a link to the file:<br>
<a href="https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/tree/drivers/usb/core/config.c?id=refs/tags/v4.2.4" rel="noreferrer" target="_blank">https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/tree/drivers/usb/core/config.c?id=refs/tags/v4.2.4</a><br>
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-Jerry<br>
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Thanks for doing this Jerry. If it's not under 4.2 and 4.3 it of course won't be present in Fedora 22's kernel 4.1.That saves me a bunch of time installing Fedora 23 Beta for no reason.<br>
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Now I need to learn how to patch and install a custom kernel in Fedora 22. It's been a *long* time since I've done that under any distro. I'm sure I have all the tools since I had tried patching mceusb.ko to try to get my Chinese IR receiver working. I assume there is a page somewhere with instructions on compiling and installing under grub2, etc.<span><font color="#888888"><br>
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Kirk</font></span><br></blockquote></div><br></div></div></div><div class="gmail_extra">I wonder if there may be something else going on here, maybe Fedora-specific, or flakey hardware? I'm running self-compiled 4.0.5 (with the Gentoo patchset) on my ECS Liva and I've never had anything that looked like USB issues. I did verify that line in the source code is unmodified by Gentoo (mine still says n=32). Now granted, I've only tried one remote receiver and USB keyboard and one or two flash drives so my experience is not exactly broad, but a number of other people picked up an ECS Liva for use as a MythTV frontend and have virtually zero complaints about them. The only way to really test it is to install a different OS on it, which I gather you're unwilling to do.<span class=""><font color="#888888"><br><br></font></span></div><span class=""><font color="#888888"><div class="gmail_extra">Karl<br></div></font></span></div>
</blockquote></div><br></div><div class="gmail_extra">Karl, I think the problem has to do with the version of mce emulation the IR receiver is using (in combination with the Liva/xHCI). If your kernel reports "<span style="font-size:12.8px">mce emulator </span><span style="font-size:12.8px">interface version 2" (which my Topseed receiver does), it will not work on the Liva (and this seems to be true for both Ubuntu and Debian). If it says version 3, I think you'll be ok.</span></div><div class="gmail_extra"><span style="font-size:12.8px"><br></span></div><div class="gmail_extra"><span style="font-size:12.8px">I don't see how it could be distribution-related, as it is a kernel-level driver.</span></div><div class="gmail_extra"><span style="font-size:12.8px"><br></span></div><div class="gmail_extra"><span style="font-size:12.8px">Kirk, sorry I can't help with kernel patching. Not my area of expertise and I'd give you more misinformation than useful data if I tried.</span></div><div class="gmail_extra"><span style="font-size:12.8px"><br></span></div><div class="gmail_extra"><span style="font-size:12.8px">-Jerry</span></div></div>