Hey. can you instruct me on: 1) how to turn on this dynamic debugging thing? 2) How do I know which directory in /sys/kernel/debug/hid/ is the one for the accelerometer? The USB device ID is Bus 002 Device 003: ID 0483:91d1 STMicroelectronics The weird thing is that after suspend & resume, iio-sensor-proxy can suddenly read the values from the sensor, but it still doesn't rotate the screen. On Tue, Aug 12, 2014 at 7:42 PM, Reyad Attiyat <reyad.attiyat@xxxxxxxxx> wrote: > Hello Elad Alfassa, > > I'm not too sure exactly what has caused such a regression but I will > try and help. There was very little added to the accelerometer driver > in between those releases only, some slight power modifications and > raw read support. > > Have you tried using the sysfs interface for the IIO accelerometer. > Should be located in /sys/bus/iio/devices/iio:devicex/ > In that directory, on the newest kernel, there should be a > in_accel_x_raw file, can you read new data from this? > > Can you provide more detail about the error. Turn on dynamic debugging > for hid-sensor-hub and hid-sensor-accel-3d modules. Then try enabling > the scan elements and the buffer with the sysfs interface and post the > full dmesg output. Also print the HID report description found on > debugfs usually somewhere like > (/sys/kernel/debug/hid/xxxx:xxxx:/rdesc) Maybe with this extra > information the problem will be more clear. > > For a possible fix you can try adding the devices USB HID ID's, for > the sensor hub, to the hid-sensor-hub driver hid_device_id struct. > This will allow adding a quirk for your device and should setup the > power state and enable the sensor hub correctly. > > Good luck, > Reyad Attiyat > > On Mon, Aug 11, 2014 at 8:51 AM, Elad Alfassa <elad@xxxxxxxxxxxxxxxxx> wrote: >> On Mon, Aug 11, 2014 at 3:16 PM, Elad Alfassa <elad@xxxxxxxxxxxxxxxxx> wrote: >>> Hi. >>> >>> I have a Thinkpad Twist, this is a Windows 8 certified machine from >>> around 2012, and it has an accelerometer. >>> Running kernel 3.16.0-1.fc22.x86_64, I'm getting "Resource Temporarily >>> Unavailable" when trying to read from the accelerometer. >>> >>> Tiny bit more details: >>> https://github.com/hadess/iio-sensor-proxy/issues/1 >>> https://sysdev.microsoft.com/en-us/hardware/LPL/ProductDetails.aspx?ProductID=98463&OrganizationID=4733 >>> >>> Is this a known issue? Can I help debug this in any way? >>> >>> >>> Thanks. >>> >>> -- >>> -Elad Alfassa. >> >> Hi. >> Turns out this is a regression - it works well with kernel >> 3.15.8-200.fc20.x86_64 >> I tried reporting this in the kernel bugzilla, but I couldn't find the >> right component for the bug, so I filed it in RHBZ for now. >> https://bugzilla.redhat.com/show_bug.cgi?id=1128760 >> >> >> -- >> -Elad Alfassa. >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-iio" in >> the body of a message to majordomo@xxxxxxxxxxxxxxx >> More majordomo info at http://vger.kernel.org/majordomo-info.html -- -Elad Alfassa. -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
