| Summary: | HAL ignores video4linux virtual devices (like vivi) | ||
|---|---|---|---|
| Product: | hal | Reporter: | Ionut Dediu <deionut> |
| Component: | hald | Assignee: | David Zeuthen (not reading bugmail) <zeuthen> |
| Status: | REOPENED --- | QA Contact: | |
| Severity: | major | ||
| Priority: | high | CC: | danny.kukawka, deionut, whoopie79 |
| Version: | unspecified | ||
| Hardware: | Other | ||
| OS: | All | ||
| Whiteboard: | |||
| i915 platform: | i915 features: | ||
| Attachments: |
hald verbose syslog output
support virtual video4linux devices |
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Description
Ionut Dediu
2008-08-08 16:35:05 UTC
What informations are under /devices/virtual/video4linux/video0 ? Could you run: grep . /devices/virtual/video4linux/video0/* and paste the output to the bug? (In reply to comment #1) > What informations are under /devices/virtual/video4linux/video0 ? Could you > run: > > grep . /devices/virtual/video4linux/video0/* > > and paste the output to the bug? > grep . /sys/devices/virtual/video4linux/video0/* /sys/devices/virtual/video4linux/video0/dev:81:0 /sys/devices/virtual/video4linux/video0/name:vivi (0) /sys/devices/virtual/video4linux/video0/uevent:MAJOR=81 /sys/devices/virtual/video4linux/video0/uevent:MINOR=0 I submitted this bug, because lshal doesn't enumerate the smartcam driver (http://sourceforge.net/projects/smartcam/). SmartCam emulates a bluetooth webcam, allowing a Symbian phone to behave as a wireless webcam; Right now SmartCam does not work with Cheese, and I suspect it doesn't work either with Skype/gstfakevideo because HAL does not enumerate the virtual device associated with it. However, with respect to HAL, the smartcam driver behaves exactly like vivi, a webcam emulation driver that is included in the kernel; so for this bug, vivi can be used for testing, as it is stable and included in the kernel distribution. It would be a shame to cut off such virtual devices from video processing applications using hal for device discovery, just because they are not "real" hardware. Thanks, Ionut Please run/start hal in debug mode (hald --daemon=yes --verbose=yes --use-syslog), check if HAL is ready (check e.g. with lshal) and attach then the part of /var/log/messages since you started HAL to this bug. No new info since 8 months, close bug now. Created attachment 30955 [details]
hald verbose syslog output
Please find attached the requested hal debug output.
The HAL messages when the smartcam kernel module is loaded are as follows:
Nov 4 12:34:16 x61t hald[12185]: 12:34:16.033 [I] osspec.c:251: SEQNUM=1752, ACTION=add, SUBSYSTEM=module, DEVPATH=/sys/module/videodev, DEVNAME=, IFINDEX=0
Nov 4 12:34:16 x61t kernel: [ 3855.566660] Linux video capture interface: v2.00
Nov 4 12:34:16 x61t hald[12185]: 12:34:16.035 [I] osspec.c:251: SEQNUM=1751, ACTION=add, SUBSYSTEM=module, DEVPATH=/sys/module/v4l1_compat, DEVNAME=, IFINDEX=0
Nov 4 12:34:16 x61t hald[12185]: 12:34:16.035 [I] osspec.c:251: SEQNUM=1753, ACTION=add, SUBSYSTEM=class, DEVPATH=/sys/class/video4linux, DEVNAME=, IFINDEX=0
Nov 4 12:34:16 x61t hald[12185]: 12:34:16.035 [I] hotplug.c:435: checking event /sys/class/video4linux
Nov 4 12:34:16 x61t hald[12185]: 12:34:16.035 [I] device.c:4905: add_dev: subsys=class sysfs_path=/sys/class/video4linux dev= parent_dev=0x00000000
Nov 4 12:34:16 x61t hald[12185]: 12:34:16.035 [D] hotplug.c:453: events queued = 0, events in progress = 0
Nov 4 12:34:16 x61t hald[12185]: 12:34:16.035 [D] hotplug.c:458: Hotplug-queue empty now ... no hotplug events in progress
Nov 4 12:34:16 x61t hald[12185]: 12:34:16.036 [I] osspec.c:251: SEQNUM=1754, ACTION=add, SUBSYSTEM=module, DEVPATH=/sys/module/smartcam, DEVNAME=, IFINDEX=0
Nov 4 12:34:16 x61t hald[12185]: 12:34:16.040 [I] osspec.c:251: SEQNUM=1755, ACTION=add, SUBSYSTEM=video4linux, DEVPATH=/sys/devices/virtual/video4linux/video0, DEVNAME=/dev/video0, IFINDEX=0
Nov 4 12:34:16 x61t hald[12185]: 12:34:16.040 [I] hotplug.c:435: checking event /sys/devices/virtual/video4linux/video0
Nov 4 12:34:16 x61t hald[12185]: 12:34:16.040 [I] hotplug.c:145: /sys/devices/virtual/video4linux/video0 is a device (subsystem)
Nov 4 12:34:16 x61t hald[12185]: 12:34:16.040 [I] device.c:4905: add_dev: subsys=video4linux sysfs_path=/sys/devices/virtual/video4linux/video0 dev=/dev/video0 parent_dev=0x00000000
Nov 4 12:34:16 x61t hald[12185]: 12:34:16.040 [D] hotplug.c:453: events queued = 0, events in progress = 0
Nov 4 12:34:16 x61t hald[12185]: 12:34:16.040 [D] hotplug.c:458: Hotplug-queue empty now ... no hotplug events in progress
Reopen bug report as requested logs are attached now. Created attachment 40600 [details] [review] support virtual video4linux devices As I'm still running a distribution which is based on HAL, I made a patch for HAL to support virtual video4linux devices. This should be closed now? |
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