On Tue, 2016-08-30 at 22:42 +0000, Pandruvada, Srinivas wrote: > Hi All, > > I observed that using iio-sensor-proxy.service, the auto screen > rotation flipped on my laptop (Normal -> vertical, vertical->normal) > using kernel v4.8. > > Anyone else has seen this? > > I did a bisect and found a commit, which I am not sure how can it > impact. > > > commit 703b5faf22fbddf984a361e6555f3a03fdba63d9 > Author: George Spelvin <linux@xxxxxxxxxxxxxxxxxxx> > Date: Fri Jun 10 00:22:12 2016 -0400 > [...] It turns out to be some assumption user space program is making about the traversing directory using glib call g_dir_read_name(). With the commit 703b5faf22fbddf984a361e6555f3a03fdba63d9 (fs/dcache.c: Save one 32-bit multiply in dcache lookup) in kernel 4.8-rc, somehow the order is changed (so the in_accel_y was appearing before in_accel_x ) I modified user space program to use correct iio scan element index to determine byte offset instead depending on the glib_dir_read_name, which doesn't guarantee any order. I sent a pull request to author of iio-sensor-proxy to review. Hadess, Please look. https://github.com/hadess/iio-sensor-proxy/pull/99/commits/de80c50b2678 2ba6e899ee5a95b31b28790c940d Thanks, Srinivas -- 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
