On 07/26/2013 08:29 PM, Bin Liu wrote: Hi Bin, >> [ 97.570852] musb-hdrc musb-hdrc.1.auto: Poll devctl 19 (a_wait_bcon) > I don't think you are testing with the 3.2 kernel you referred from > the ti.com link you mentioned above. > 3.2 kernel should have no '.auto' at the end of the device name. > > If it is 3.8 or later, it seems the driver does something wrong, > SESSION bit should not be cleared after the device is unplugged. The bit is removed in otg_timer() because the phy gets into OTG_STATE_A_WAIT_BCON. Now, this is current HEAD + my stuff to get second port working. I downloaded v3.2 and browsed as I was looking for the workaround, never tested maybe I should… On v3.8 from git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git I don't get the second port to work. I see [ 1.989101] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002 [ 1.996361] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 2.004060] usb usb1: Product: MUSB HDRC host driver [ 2.009363] usb usb1: Manufacturer: Linux 3.8.13+ musb-hcd [ 2.015183] usb usb1: SerialNumber: musb-hdrc.0.auto [ 2.033653] hub 1-0:1.0: USB hub found [ 2.037861] hub 1-0:1.0: 1 port detected and nothing happens once I plug in the device. Sebastian -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
