Why this is happening with generic_buffer application that it sometimes fails to open the device handles of Accelerometer and after I follow the STEP -> sleep -> run the application -> wakeup using the power button of the device, the application gets the device handles and polls the Accelerometer correctly . The frequency of this behavior is random. Why is it so? Thanks and Rgds, -S PS: Please ignore if you get this mail twice, Some problem in sending the mail. On Mon, Apr 20, 2015 at 4:04 PM, s.rawat <imsaurabhrawat@xxxxxxxxx> wrote: > After I allow the device to go into sleep(pressing power button once) > and then run the generic_buffer app and then make the device wake-up > the app works fine.I don't know if going into the sleep and waking it > up does some sort of reset to the application variables or file > descriptor. > > On Mon, Apr 13, 2015 at 3:35 PM, s.rawat <imsaurabhrawat@xxxxxxxxx> wrote: >> +closedir(dp) >> +dp = opendir(scan_el_dir); >> >> This seems to work fine.But sometimes polling accel throws error : >> failed to open /dev/iio:device0 . >> >> sorry for reposts : Changed the browser.Was not able to send in "Plain >> text mode" >> >> On Mon, Apr 13, 2015 at 11:56 AM, Jonathan Cameron >> <jic23@xxxxxxxxxxxxxxxxxxxxx> wrote: >>> >>> >>> On 13 April 2015 04:40:17 BST, "s.rawat" <imsaurabhrawat@xxxxxxxxx> wrote: >>>>On Fri, Apr 10, 2015 at 11:49 AM, Jonathan Cameron <jic23@xxxxxxxxxx> >>>>wrote: >>>>> Hit google >>>>> http://pubs.opengroup.org/onlinepubs/009695399/functions/seekdir.html >>>>> So for POSIX compliance they are optional. >>>> >>>>You mean seekdir(dp, 0); in function inline int >>>>build_channel_array(...) is optional?If I comment it, will it have no >>>>effect? This function is called inside main() of generic_buffer.c and >>>>I cant get it compiled with the tool chain I have.Is there any >>>>alternate code I can replace it with if it is Not Optional? >>> The functionality is not optional. There is no obligation for the operating system to implement seekdir. >>> >>> Here equivalent is probably to close and reopen the directory. >>>> >>>>I can take care of le16toh/be16toh. >>>> >>>>Thanks and Rgds, >>>>S >>> >>> -- >>> Sent from my Android device with K-9 Mail. Please excuse my brevity. -- 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
