Changes between Version 5 and Version 6 of Resources/Notes/Krypton Usage

Timestamp:

Mar 22, 2020, 11:24:22 AM (5 years ago)

Author:

mpk2138

Comment:

—

Resources/Notes/Krypton Usage

@@ -55 +55 @@
 
 === Trouble shooting ===
+
+==== FPGA version mismatch ====
 If the above commands return with an error message stating an FPGA version mismatch, then we'll need to update the FPGA that is compatible with the current UHD version. The typical error message would be similar to the following:
 {{{
@@ -77 +79 @@
 root@sdr2-lg1:~# /usr/local/bin/niusrprio_pcie start
 }}}
+
+==== NI Driver does not build ====
+
+While trying to build the NI driver following the instructions above, you may encounter an error regarding the ''do_munmap'' function not having enough input arguments. To fix this issue, issue the following command to open the problematic C code file in nano:
+
+{{{
+nano /var/lib/nikal/5.0.0-29-generic/nikal/nikal.c
+}}}
+
+Use the nano command CTRL-W to search for "do_munmap" and locate the following function:
+
+{{{
+static inline int nNIKAL240_do_munmap(struct mm_struct *mm, unsigned long addr, size_t len)
+{
+#if defined(nNIKAL1_kDoMunmapHasUf)
+   return do_munmap(mm, addr, len, NULL);
+#elif defined(nNIKAL100_kDoMunmapHasAcct)
+   return do_munmap(mm, addr, len, 1);
+#else
+   return do_munmap(mm, addr, len);
+#endif
+}
+}}}
+
+Note that the third and final call to ''do_munmap'' is missing the fourth parameter. Add NULL as the fourth parameter so that the line reads as the following: 
+
+{{{
+   return do_munmap(mm, addr, len, NULL);
+}}}
+
+Save the file by typing CTRL-O, Enter and close by typing CTRL-X. Try building the driver again - it should proceed without issue.