diff options
| author | David Herrmann <dh.herrmann@gmail.com> | 2014-09-20 09:48:22 +0200 |
|---|---|---|
| committer | David Herrmann <dh.herrmann@gmail.com> | 2014-09-20 11:46:49 +0200 |
| commit | a3eabec96b872bbf581c9bfa81ecc9c2819b8de8 (patch) | |
| tree | 344869ffd0d9afc4399b5567153b8f9f3a0d49ed /src/libsystemd-terminal/grdev.c | |
| parent | 46c9a12780ea24ef311682897077423f1825c519 (diff) | |
terminal: grdev: treat udev-devices without devnum as hotplug
If we get udev-device events via sysview, but they lack devnum
annotations, we know it cannot be a DRM card. Look through it's parents
and treat it as hotplug event in case we find such a card.
This will treat any new/removed connectors as sub-devices of the real
card, instead of as devices on its own.
Diffstat (limited to 'src/libsystemd-terminal/grdev.c')
| -rw-r--r-- | src/libsystemd-terminal/grdev.c | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/src/libsystemd-terminal/grdev.c b/src/libsystemd-terminal/grdev.c index 1e02a6799..bb89ee717 100644 --- a/src/libsystemd-terminal/grdev.c +++ b/src/libsystemd-terminal/grdev.c @@ -1095,7 +1095,7 @@ void grdev_session_add_drm(grdev_session *session, struct udev_device *ud) { devnum = udev_device_get_devnum(ud); if (devnum == 0) - return; + return grdev_session_hotplug_drm(session, ud); card = grdev_find_drm_card(session, devnum); if (card) @@ -1120,7 +1120,7 @@ void grdev_session_remove_drm(grdev_session *session, struct udev_device *ud) { devnum = udev_device_get_devnum(ud); if (devnum == 0) - return; + return grdev_session_hotplug_drm(session, ud); card = grdev_find_drm_card(session, devnum); if (!card) @@ -1130,17 +1130,23 @@ void grdev_session_remove_drm(grdev_session *session, struct udev_device *ud) { } void grdev_session_hotplug_drm(grdev_session *session, struct udev_device *ud) { - grdev_card *card; + grdev_card *card = NULL; + struct udev_device *p; dev_t devnum; assert(session); assert(ud); - devnum = udev_device_get_devnum(ud); - if (devnum == 0) - return; + for (p = ud; p; p = udev_device_get_parent_with_subsystem_devtype(p, "drm", NULL)) { + devnum = udev_device_get_devnum(ud); + if (devnum == 0) + continue; + + card = grdev_find_drm_card(session, devnum); + if (card) + break; + } - card = grdev_find_drm_card(session, devnum); if (!card) return; |