[Xenomai-git] Alexis Berlemont : Add a trigger instruction

[GIT version control]

Module: xenomai-head
Branch: master
Commit: bd71ec003c850e49146021dead566c6a3f0bef9a
URL:    
http://git.xenomai.org/?p=xenomai-head.git;a=commit;h=bd71ec003c850e49146021dead566c6a3f0bef9a

Author: Alexis Berlemont <alexis.berlem...@gmail.com>
Date:   Sun Sep 27 16:26:53 2009 +0200

Add a trigger instruction

---

 src/utils/comedi/cmd_write.c |   29 +++++++++++++++++++++++++++--
 1 files changed, 27 insertions(+), 2 deletions(-)

diff --git a/src/utils/comedi/cmd_write.c b/src/utils/comedi/cmd_write.c
index ab57ee1..851b943 100644
--- a/src/utils/comedi/cmd_write.c
+++ b/src/utils/comedi/cmd_write.c
@@ -75,6 +75,12 @@ comedi_cmd_t cmd = {
       .chan_descs = chans,
 };
 
+comedi_insn_t insn = {
+       .type = COMEDI_INSN_INTTRIG,
+       .idx_subd = ID_SUBD,
+       .data_size = 0,
+};
+
 struct option cmd_write_opts[] = {
        {"verbose", no_argument, NULL, 'v'},
        {"real-time", no_argument, NULL, 'r'},
@@ -123,7 +129,7 @@ int main(int argc, char *argv[])
                        filename = optarg;
                        break;
                case 's':
-                       cmd.idx_subd = strtoul(optarg, NULL, 0);
+                       cmd.idx_subd = insn.idx_subd = strtoul(optarg, NULL, 0);
                        break;
                case 'S':
                        cmd.stop_arg = strtoul(optarg, NULL, 0);
@@ -319,8 +325,17 @@ int main(int argc, char *argv[])
                                        ret);
                                goto out_main;
                        }
-
                        cnt += ret;
+
+                       if (cnt == ret && cnt != 0) {
+                               ret = comedi_snd_insn(&dsc, &insn);
+                               if (ret < 0) {
+                                       fprintf(stderr,
+                                               "cmd_write: triggering failed 
(ret=%d)\n",
+                                               ret);
+                                       goto out_main;                          
        
+                               }
+                       }
                }
        } else {
                unsigned long front = 0;
@@ -372,6 +387,16 @@ int main(int argc, char *argv[])
                                        ret);
                                goto out_main;
                        }
+                       
+                       if (cnt == front && cnt != 0) {
+                               ret = comedi_snd_insn(&dsc, &insn);
+                               if (ret < 0) {
+                                       fprintf(stderr,
+                                               "cmd_write: triggering failed 
(ret=%d)\n",
+                                               ret);
+                                       goto out_main;                          
        
+                               }                               
+                       }
                }
        }
 


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