Alok, DaVinci Staging kernel tree on Arago is tested by TI teams on Davinci platforms and hence an alternative recommendation.
Trying it with the arago kernel might give us an idea of the original usb device getting struck issue, once the issue is clearly known we can work toward in helping you on whether a power reset is needed. Having said that I have not seen that need so far (having dealt with DaVinci usb for all these years). regards swami ________________________________ From: Alok Kumar [aku...@cernium.com] Sent: Wednesday, June 09, 2010 7:58 AM To: Subbrathnam, Swaminathan; davinci-linux-open-source@linux.davincidsp.com Subject: RE: Reseting USB port power Yes, I am using Git tree maintained by Kevin. Could you please explain, is other one (DaVinci staging tree at Arago) suppose to be better? Does this gives capability to reset power for USB port? Thanks Alok From: Subbrathnam, Swaminathan [mailto:swami.i...@ti.com] Sent: Tuesday, June 08, 2010 10:23 PM To: Alok Kumar; davinci-linux-open-source@linux.davincidsp.com Subject: RE: Reseting USB port power Alok, I believe the git tree you are mentioning is DaVinci Git tree (maintained by Kevin). Can you try with the DaVinci staging tree at Arago that would give us a pointer on probable cause. regards swami ________________________________ From: Alok Kumar [aku...@cernium.com] Sent: Wednesday, June 09, 2010 7:47 AM To: Subbrathnam, Swaminathan; davinci-linux-open-source@linux.davincidsp.com Subject: RE: Reseting USB port power swami, I am using kernel 2.6.30 from the davinci git tree with Davinci 6446. We don’t have any hardware discrete attach to USB power supply and we are looking for SW way to reset the USB power supply or something which does equivalent. Any help will be greatly appreciated. Thanks Alok From: Subbrathnam, Swaminathan [mailto:swami.i...@ti.com] Sent: Tuesday, June 08, 2010 10:12 PM To: Alok Kumar; davinci-linux-open-source@linux.davincidsp.com Subject: RE: Reseting USB port power Alok, What kernel version are you using? Can you also post it in the TI e2e forum, perhaps you would get some more inputs. Did yout try with DaVinci Staging kernel? regards swami ________________________________ From: davinci-linux-open-source-boun...@linux.davincidsp.com [davinci-linux-open-source-boun...@linux.davincidsp.com] On Behalf Of Alok Kumar [aku...@cernium.com] Sent: Wednesday, June 09, 2010 3:34 AM To: davinci-linux-open-source@linux.davincidsp.com Subject: Reseting USB port power We are dealing with USB drives which gets stuck up and would not respond properly at times. We wanted to turn off the USB device power, but we don’t have any discrete attach to USB power supply. Is there any way to reset the USB power supply ? or any equivalent of this. Any response will be appreciated. Thanks Alok NOTICE: The information contained in this email and any document attached hereto is intended only for the named recipient(s). It is the property of Cernium Corporation and shall not be used, disclosed or reproduced without the express written consent of Cernium Corporation. If you are not the intended recipient (or the employee or agent responsible for delivering this message in confidence to the intended recipient(s)), you are hereby notified that you have received this transmittal in error, and any review, dissemination, distribution or copying of this transmittal or its attachments is strictly prohibited. If you have received this transmittal and/or attachments in error, please notify me immediately by reply email or telephone and immediately delete this message and all its attachments. Thank you. NOTICE: The information contained in this email and any document attached hereto is intended only for the named recipient(s). 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