On Thu, Jun 11, 2015 at 2:52 AM, Mattia Dongili <malattia@xxxxxxxx> wrote: > Hi Dalton, > > On Wed, Jun 10, 2015 at 03:30:32AM +0530, Dalton Fury wrote: >> [1.] [Sony VAIO SVF14212SNB] Can't change usb_charge attribute in >> /sys/devices/platform/sony-laptop >> >> [2.] I am on a Sony VAIO svf43142sn. My laptop has the ability to > ... >> echo -n 0 | sudo tee -a /sys/devices/platform/sony-laptop/usb_charge >> >> these are the curresponding kernel log entries: >> >> [ 495.400140] sony_laptop: found handle 0x0155 (offset: 0x07) >> [ 495.400955] sony_laptop: __call_snc_method: [SN07:0x0000000000000107] >> [ 495.400961] sony_laptop: called SN07 with 0x0107 (result: 0x0000) >> >> After attempting to change, and when I cat the value of usb_charge, I >> find that it is unchanged. But when the cat cammand is executed, I get >> these kernel messages: >> >> [ 683.170315] sony_laptop: found handle 0x0155 (offset: 0x07) >> [ 683.170458] sony_laptop: __call_snc_method: [SN07:0x0000000000000007] >> [ 683.170462] sony_laptop: called SN07 with 0x0007 (result: 0x0001) > > I have the same behaviour on my laptop (a Pro11), I believe usb_charge > was working correctly sometime in the past. > It may take me some time but I should be able to take a look. In the > meantime it would be good if you could attach the DSDT from your model > to the Ubuntu bug report and send a link here too. > >> I don't know if it is relevent, but for writing this bug report, when >> I booted into the latest upstream kernel, I could not boot. The second >> time it booted successfully. > > I don't think it is. > > Thanks > -- > mattia > :wq! -- To unsubscribe from this list: send the line "unsubscribe platform-driver-x86" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
