Re: [Barry-devel] The many ways to enable/disable CONFIG_USB_SUSPEND's autosuspend mode
On Sat, Sep 29, 2007 at 07:44:18PM -0700, troy engel wrote: Chris, are you aware of any problems - other than more battery usage on a laptop e.g. - with disabling USB suspend? A quick Google I know of no such problems... actually the only problems I've had are with leaving it on. :-) Obviously if you're trying for optimum battery life, then suspend is handy, but in relation to the Blackberry, you're better off just unplugging it when you don't need it connected. Can't beat 0 watts :-) indicates we're not the only ones in this category (xsane/sane seems to have lots of issues with it as well) and folks are disabling it, as well I found a thread on a Fedora list where the dev's discuss all the devices with quirks but they feel it should be enabled globally. I took a peek at Ubuntu 7.10 Gutsy's latest kernel, and they patch driver/usb/core/quirks.c with a whole list of devices, the Blackberry being one of them, so it looks like this problem will go away for those folks upgrading early. The upcoming Barry 0.9 will hopefully fix this on Ubuntu 7.04 and Fedora 7 as well. I plan to do more testing, but so far CVS's bcharge is performing admirably on my system. (Debian stable) In your tests and setup, is it bcharge doing the disabling at runtime or are you passing the parameter to the kernel at boot/initrd and disabling it globally? Bcharge uses a hint from udev to find the right device under /sys, and then searches for the files level, autosuspend, and state in the following order, writing on, -1 or 0, and 0 respectively. This only disables autosuspend for the Blackberry that udev detected was just plugged in. Bcharge can't disable this globally. That requires a reboot. - Chris - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Barry-devel mailing list Barry-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/barry-devel
Re: [Barry-devel] The many ways to enable/disable CONFIG_USB_SUSPEND's autosuspend mode
On 9/29/07, Chris Frey [EMAIL PROTECTED] wrote: It works great in my tests here. I'm letting it sit for a while to make sure the kernel stays in on mode. So far so good. Chris, are you aware of any problems - other than more battery usage on a laptop e.g. - with disabling USB suspend? A quick Google indicates we're not the only ones in this category (xsane/sane seems to have lots of issues with it as well) and folks are disabling it, as well I found a thread on a Fedora list where the dev's discuss all the devices with quirks but they feel it should be enabled globally. In your tests and setup, is it bcharge doing the disabling at runtime or are you passing the parameter to the kernel at boot/initrd and disabling it globally? thx, -te -- I live in my own little world, but it's ok; they know me here. - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Barry-devel mailing list Barry-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/barry-devel
Re: [Barry-devel] The many ways to enable/disable CONFIG_USB_SUSPEND's autosuspend mode
On Sat, Sep 29, 2007 at 01:35:53AM -0400, Chris Frey wrote: I'll update bcharge soon to try to handle this automatically, but I'm not sure it will work in every case. Ok, CVS has been updated with a fix to bcharge. If your system has the file level or autosuspend under /sys/class/usb_device/*/device/power/ then you should be able to charge your Blackberry without recompiling the kernel. It works great in my tests here. I'm letting it sit for a while to make sure the kernel stays in on mode. So far so good. - Chris - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Barry-devel mailing list Barry-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/barry-devel
Re: [Barry-devel] The many ways to enable/disable CONFIG_USB_SUSPEND's autosuspend mode
On 9/29/07, Chris Frey [EMAIL PROTECTED] wrote: I know of no such problems... actually the only problems I've had are with leaving it on. :-) Heh. I was more thinking like with a USB mouse and so forth, but your below comments clarified that we're only disabling it at runtime for the single device so this is a non-issue. Bcharge can't disable this globally. That requires a reboot. Right, I gotcha - sorry I meant disabling it via the dev/sys method you spelled out, or passing the global parameter on the kernel boot line (or modules.conf/initrd) for the entire machine. Since your previous email outlined how we could do that, I didn't know which method your test setup was using. All is clear now. :) -te -- I live in my own little world, but it's ok; they know me here. - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Barry-devel mailing list Barry-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/barry-devel
