[OpenWrt-Devel] USB Hotplug

[John Crispin]

On 04/03/2016 16:43, John Crispin wrote:
> 
> 
> On 04/03/2016 16:42, alzhao wrote:
>> Hi john,
>> can you specify which patch? I want to check.
>> On Fri, 4 Mar 2016 at 23:34, John Crispin <blogic at openwrt.org
>> <mailto:blogic at openwrt.org>> wrote:
>>
>>
>>
>>     On 04/03/2016 15:07, alzhao wrote:
>>     > Did you develop the board by yourself? Generally this is a hardware
>>     > problem, like wrong resistors. After the system boot the USB cannot
>>     > supply enough power to the drive.
>>     >
>>     >
>>     > On Fri, 4 Mar 2016 at 21:57, Baptiste Clenet <bapclenet at gmail.com
>>     <mailto:bapclenet at gmail.com>
>>     > <mailto:bapclenet at gmail.com <mailto:bapclenet at gmail.com>>> wrote:
>>     >
>>     >     Hi,
>>     >
>>     >     I run OpenWRT on a mt7688 board, if I plug a pendrive before
>>     the boot,
>>     >     it is detected and I can store data on it. However, after the
>>     board
>>     >     has finished booting, if I plug the pendrive, I can't detect
>>     it, the
>>     >     LED on the pendrive switch on and off after a 1/2 sec.
>>     >     Should I include something else to make hotplug work?
>>     >     root at OpenWrt:/# lsmod | grep usb
>>     >     btintel                 1209  1 btusb
>>     >     btusb                  26816  0
>>     >     ledtrig_usbdev          1936  0
>>     >     nls_base                5008  1 usbcore
>>     >     scsi_mod               90601  2 usb_storage
>>     >     usb_common              1740  1 usbcore
>>     >     usb_storage            37407  0
>>     >     usbcore               117268  7 btusb
>>     >
>>     >
>>     >     --
>>     >     Baptiste
>>     >     _______________________________________________
>>     >     openwrt-devel mailing list
>>     >     openwrt-devel at lists.openwrt.org
>>     <mailto:openwrt-devel at lists.openwrt.org>
>>     <mailto:openwrt-devel at lists.openwrt.org
>>     <mailto:openwrt-devel at lists.openwrt.org>>
>>     >     https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel
>>     >
>>
>>     what revision of openwrt do you use ? i recently pushed a patch that
>>     fixes a phy reset problem causing usb2.0 devices to not work properly
>>
> 
> please don't top post and use HEAD revision or check the git log please
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in the case where it does not work, do you get IRQs from the USB ?
check /proc/interrupts to see if they increase please

	John
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