From: Mike Isely Date: Sat, 7 Mar 2009 03:28:28 +0000 (-0300) Subject: V4L/DVB (11174): pvrusb2: Implement reporting of connected sub-devices X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=858f910e869d1300c1ab0cadbe9908322f8bfb78;p=linux-2.6-omap-h63xx.git V4L/DVB (11174): pvrusb2: Implement reporting of connected sub-devices The pvrusb2 driver has a function that reports internal state. It can be accessed from either the debug interface or as the result of a v4l log status request. This change adds information listing sub-devices to the report. Signed-off-by: Mike Isely Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/drivers/media/video/pvrusb2/pvrusb2-hdw.c index 2f9667e62bb..bd4e374e37f 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-hdw.c +++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.c @@ -4779,6 +4779,29 @@ static unsigned int pvr2_hdw_report_unlocked(struct pvr2_hdw *hdw,int which, stats.buffers_processed, stats.buffers_failed); } + case 6: { + struct v4l2_subdev *sd; + unsigned int tcnt = 0; + unsigned int ccnt; + const char *p; + unsigned int id; + ccnt = scnprintf(buf, + acnt, + "Associted v4l2_subdev drivers:"); + tcnt += ccnt; + v4l2_device_for_each_subdev(sd, &hdw->v4l2_dev) { + id = sd->grp_id; + p = NULL; + if (id < ARRAY_SIZE(module_names)) { + p = module_names[id]; + } + if (!p) p = "(unknown)"; + ccnt = scnprintf(buf + tcnt, + acnt - tcnt, + " %s (%u)", p, id); + } + return tcnt; + } default: break; } return 0;