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<p>Hi Joel,</p>
<p>until now, I did not receive any answer from Daniel. I do not
know if my feedback has been taken into account, maybe for other
users if they have the same issue.</p>
<p>Nevertheless, the fix seems to work fine with no apparent side
effects.</p>
<p>Regards,</p>
<p>Charles</p>
<p><br>
</p>
<br>
<div class="moz-cite-prefix">Le 11.04.2017 à 03:29, Joel Sherrill a
écrit :<br>
</div>
<blockquote
cite="mid:CAF9ehCVhWZ3LWWVrVudWwCedvLzg_aY71Og1f1M4xCkFtNBayg@mail.gmail.com"
type="cite">
<div dir="auto">I'm going to assume that Daniel didn't see this
since he didn't comment.</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Apr 10, 2017 2:41 AM, "Charles
INGELS" <<a moz-do-not-send="true"
href="mailto:charles.ingels@syderal.ch">charles.ingels@syderal.ch</a>>
wrote:<br type="attribution">
<blockquote class="quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000099">
<p>Hello,</p>
<p>By using the APB Uart BSP on a SPARC LEON3 target, I
think that I have found something which seems to be
incorrect.</p>
<p>In my RTEMS app, I just want to receive data through
the UART1. Such data are then echoed on the same
interface.</p>
<p>When I want to open the '/dev/apbuart1' descriptor, I
get a 'No such file or directory' error message. I get
the same error message whatever is the descriptor I try
to open ('/dev/apbuart0', ...).</p>
<p>I am using the driver manager and I have defined the
CONFIGURE_DRIVER_AMBAPP_<wbr>GAISLER_APBUART to have the
driver manager create the device descriptors. However,
the descriptors are not created.</p>
<p>I had a look at the content of the following file :</p>
<p>U:\rtems\src2\rtems\c\src\lib\<wbr>libbsp\sparc\shared\uart\<wbr>apbuart_cons.c</p>
<p>On line #278, the if statement does not explicitly test
the value returned by the call to function
'drvmgr_get_dev_prefix()'.</p>
<p>Since such function returns 0 in case of success, the
content of the if statement is never executed.
Consequently, the variable 'priv->devName' is never
initialized to the right string '/dev/apbuart%d', it is
always empty which seems to explain why the device
descriptor is not not created.</p>
<p>I have slightly modified the test with the following
code :</p>
<pre>if (drvmgr_get_dev_prefix(dev, prefix) != -1)
{
...
}
</pre>
<p>I explicitly test the returned value against -1 (which
is considered as an error). With that code, the
'/dev/apbuartX' device descriptors are successfully
created and communicate with the UART.</p>
<p>So is it a known bug ? Will it be fixed in the next
releases ? Is the way I fixed it correct, or no ?</p>
<p>Such fix works for me but are there some side effects
that shall be taken into account ?</p>
<p>Thanks for your answers,</p>
<p>Regards,</p>
<p>Charles</p>
<p><br>
</p>
<p><br>
</p>
<br>
<div class="m_-5841158778217462889moz-signature">-- <br>
<table border="0" width="750px">
<tbody>
<tr>
<td> <b>Charles INGELS</b><br>
Embedded software expert<br>
<font face="courier"><a moz-do-not-send="true"
class="m_-5841158778217462889moz-txt-link-abbreviated"
href="mailto:charles.ingels@syderal.ch"
target="_blank">charles.ingels@syderal.ch</a></font><br>
Phone <i><a moz-do-not-send="true"
href="tel:+41%2032%20338%2099%2010"
value="+41323389910" target="_blank">+41
(0)32 338 99 10</a></i> <br>
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<br>
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href="tel:+41%2032%20338%2099%2034"
value="+41323389934" target="_blank">+41
(0)32 338 99 34</a></i> <br>
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class="m_-5841158778217462889moz-txt-link-freetext"
href="http://www.syderal.ch" target="_blank">http://www.syderal.ch</a>
<br>
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src="cid:part7.F4D177FE.AD165432@syderal.ch"
height="65%" width="65%"> </td>
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