[Xenomai-git] Alexis Berlemont : analogy: add a missing error message in insn_write

[GIT version control]

Module: xenomai-abe
Branch: analogy
Commit: 8fef208529db53f3b9953fc9501807975c5216b8
URL:    
http://git.xenomai.org/?p=xenomai-abe.git;a=commit;h=8fef208529db53f3b9953fc9501807975c5216b8

Author: Alexis Berlemont <alexis.berlem...@gmail.com>
Date:   Sun Jan 24 23:34:26 2010 +0100

analogy: add a missing error message in insn_write

---

 src/utils/analogy/insn_write.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/src/utils/analogy/insn_write.c b/src/utils/analogy/insn_write.c
index 2fcd7f4..9d61dc8 100644
--- a/src/utils/analogy/insn_write.c
+++ b/src/utils/analogy/insn_write.c
@@ -281,8 +281,11 @@ int main(int argc, char *argv[])
        ret = a4l_sync_write(&dsc, 
                             idx_subd, CHAN(idx_chan), 0, &value, scan_size);
 
-       if (ret < 0)
+       if (ret < 0) {
+               fprintf(stderr, 
+                       "insn_write: a4l_sync_write failed (err=%d)\n", ret);
                goto out_insn_write;
+       }
 
        if (verbose != 0)
                printf("insn_write: %u bytes successfully sent\n", scan_size);


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