Hi Greg, I tried Linux-2.6.11.8 and patch-2.6.12-rc3 to check USB device (mobile) power ON/OFF. But still it is disconnecting and connecting the device while USB device is charging.
And also I observed some of the conditions on power ON/OFF One scenario is, if device is OFF and while charging, we can still turn it ON by giving command AT+CFUN=1. Second scenario is, if device is not charging, if we give command AT+CFUN=0, it disconnect the device. Third scenario is, if device is charging, give AT+CFUN=0 it disconnect the device. I hope you understood the problem. Is there any thing that we need take care device condition to avoid disconnect (while charging) if so, please let me know. This is one of the most critical problem we are facing it. Please help us in this. Thanks. Regards Shalini -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Tuesday, April 26, 2005 9:35 AM To: [EMAIL PROTECTED]; [email protected] Cc: [EMAIL PROTECTED] Subject: RE: [linux-usb-devel] Usb serial with Power ON and OFF problem Hi Devid, Thanks for the reply. Yes, I'm using 2.4 Kernel version and I have some dependencies on that, it's difficult to change to 2.6 kernel immediately. Is there any alternative way to avoid this problem using 2.4 kernel? Regards, Shalini G -----Original Message----- From: David Brownell [mailto:[EMAIL PROTECTED] Sent: Tuesday, April 26, 2005 2:51 AM To: [email protected] Cc: Shalini Rao (WT01 - TELECOM SOLUTIONS); [EMAIL PROTECTED] Subject: Re: [linux-usb-devel] Usb serial with Power ON and OFF problem On Monday 25 April 2005 6:07 am, [EMAIL PROTECTED] wrote: > The scenario is like, mobile is in charging and if it is OFF, the device > (mobile) is identified, and if we send AT Command (basic commands), we > get response for that. To turn on, give AT+CFUN=1 command, it turns > mobile on. So you can talk to a device that's powered off ... sounds like a bug in the device firmware, it's "OFF" isn't far enough off for your taste. Or at least, there's an inconsistency when _entering_ the "OFF" state from "ON" ... it disconnects in one case, not the other. It should be both cases, or neither. > Same scenario I tried it in windows and its working fine. But in Linux > it's giving problem. Does Linux 2.6.12-rc3 behave better? You were using an old 2.4 kernel, that's known to have quirks with disconnect behavior. - Dave ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_ide95&alloc_id396&op=ick _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel ------------------------------------------------------- This SF.Net email is sponsored by Oracle Space Sweepstakes Want to be the first software developer in space? Enter now for the Oracle Space Sweepstakes! http://ads.osdn.com/?ad_ids93&alloc_id281&op=click _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
