Hi Srinivas. I sent this to Reyad previously: Here's the dmeg output: https://elad.fedorapeople.org/iio-debug/dmesg.txt and here's the rdesc file: https://elad.fedorapeople.org/iio-debug/rdesc.txt It's indeed a usb hub, Bus 002 Device 003: ID 0483:91d1 STMicroelectronics So what happens is that when I use iio-sensor-proxy (https://github.com/hadess/iio-sensor-proxy) it gets one read and gets EAGAIN for all next reads. So I kept it running, and while it was running I used cat on the raw values, which were read without error. And when I ran the cat I saw that iio-sensor-proxy managed to get another read, it happens every time I cat, ie. if I run cat in an endless loop while iio-sensor-proxy is running then all the reads it tries to do succeed. I'll send you acpidump later. On Mon, Aug 25, 2014 at 7:56 PM, Srinivas Pandruvada <srinivas.pandruvada@xxxxxxxxxxxxxxx> wrote: > So I understand you are using buffered mode. When you get this error > what happens if you just cat raw values? Do you get the same error? > > Also kernel debug logs as suggested by Reyad will be helpful to debug. > Can you confirm that the sensor hub is an usb hub (with lsusb for > vendor/product id) not i2c. > Send me also output of acpidump (you can install acpidump in most of the > distros) > > Thanks, > Srinivas > > On Sat, 2014-08-23 at 18:19 +0300, Elad Alfassa wrote: >> Hey Reyad. >> >> I don't see the >> hid_sensor_hub:sensor_hub_report_fixup:540: hid-sensor-hub >> 0003:0483:91D1.0003: No Enum quirks >> line in my dmesg, so the patch did enable the enum quirk. >> However, the symptoms are still the same. >> >> Thanks for your help. >> >> On Sat, Aug 23, 2014 at 6:14 PM, Reyad Attiyat <reyad.attiyat@xxxxxxxxx> wrote: >> > Hey Elad, >> > >> > That is unfortunate that the patch doesn't work. If the patch did >> > enable the enum quirk you should no longer see this line in your dmesg >> > when hid-sensor-hub module is loaded: >> > hid_sensor_hub:sensor_hub_report_fixup:540: hid-sensor-hub >> > 0003:0483:91D1.0003: No Enum quirks >> > >> > I'll CC Srinivas for you to try and get additional help. >> > >> > Hey Srinivas, >> > >> > Elad has a hid sensor hub from STM that is failing to produce new >> > data, any ideas what might cause this. He is getting a resource >> > temporarily unavailable after only one value is read. I had thought it >> > might need the quirk to change logical minimum to 1 for the state >> > enums but it had no effect. Any other ideas? >> > >> > On Fri, Aug 22, 2014 at 4:34 PM, Elad Alfassa <elad@xxxxxxxxxxxxxxxxx> wrote: >> >> Hey Reyad. >> >> >> >> Unfortunately, this patch does not fix the issue. >> >> The symptoms are exactly like before. >> >> >> >> Thanks, >> >> -- >> >> -Elad Alfassa. >> >> >> > > -- -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
