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Commit 858f910e authored by Mike Isely's avatar Mike Isely Committed by Mauro Carvalho Chehab
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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: default avatarMike Isely <isely@pobox.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 20ae26c8

drivers/media/video/pvrusb2/pvrusb2-hdw.c

+23 −0
Original line number Diff line number Diff line
@@ -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;