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Message-ID: <54310A74.3090404@redhat.com>
Date: Sun, 05 Oct 2014 11:08:04 +0200
From: Hans de Goede <hdegoede@...hat.com>
To: Jan Kiszka <jan.kiszka@....de>,
linux-usb <linux-usb@...r.kernel.org>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: uas: module not loaded automatically
Hi,
On 10/04/2014 08:35 PM, Jan Kiszka wrote:
> Hi,
>
> my Delock external USB drive stopped working after updating from a
> UAS-disabled distro kernel to latest 3.17-rc7 with UAS on. That UAS was
> key became clear to me only after looking at storage_probe(): the device
> is ignored by usb-storage if it is UAS-capable. However, nothing causes
> uas.ko to be loaded when the drive is plugged here. How is this supposed
> to work in the normal case?
Is the uas.ko module installed, and was depmod run after installing it ?
uas.c has the following:
{ USB_INTERFACE_INFO(USB_CLASS_MASS_STORAGE, USB_SC_SCSI, USB_PR_BULK) },
{ USB_INTERFACE_INFO(USB_CLASS_MASS_STORAGE, USB_SC_SCSI, USB_PR_UAS) },
Which should make it load automatically on your device.
Regards,
Hans
>
> lsusb of the device below.
>
> Jan
>
> ---
>
> Bus 001 Device 009: ID 174c:5136 ASMedia Technology Inc.
> Device Descriptor:
> bLength 18
> bDescriptorType 1
> bcdUSB 2.10
> bDeviceClass 0 (Defined at Interface level)
> bDeviceSubClass 0
> bDeviceProtocol 0
> bMaxPacketSize0 64
> idVendor 0x174c ASMedia Technology Inc.
> idProduct 0x5136
> bcdDevice 1.00
> iManufacturer 2 Delock
> iProduct 3 42514
> iSerial 1 200000000CB4
> bNumConfigurations 1
> Configuration Descriptor:
> bLength 9
> bDescriptorType 2
> wTotalLength 85
> bNumInterfaces 1
> bConfigurationValue 1
> iConfiguration 0
> bmAttributes 0xc0
> Self Powered
> MaxPower 100mA
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 0
> bAlternateSetting 0
> bNumEndpoints 2
> bInterfaceClass 8 Mass Storage
> bInterfaceSubClass 6 SCSI
> bInterfaceProtocol 80 Bulk-Only
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x81 EP 1 IN
> bmAttributes 2
> Transfer Type Bulk
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0200 1x 512 bytes
> bInterval 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x02 EP 2 OUT
> bmAttributes 2
> Transfer Type Bulk
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0200 1x 512 bytes
> bInterval 0
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 0
> bAlternateSetting 1
> bNumEndpoints 4
> bInterfaceClass 8 Mass Storage
> bInterfaceSubClass 6 SCSI
> bInterfaceProtocol 98
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x81 EP 1 IN
> bmAttributes 2
> Transfer Type Bulk
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0200 1x 512 bytes
> bInterval 0
> Data-in pipe (0x03)
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x02 EP 2 OUT
> bmAttributes 2
> Transfer Type Bulk
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0200 1x 512 bytes
> bInterval 0
> Data-out pipe (0x04)
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x83 EP 3 IN
> bmAttributes 2
> Transfer Type Bulk
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0200 1x 512 bytes
> bInterval 0
> Status pipe (0x02)
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x04 EP 4 OUT
> bmAttributes 2
> Transfer Type Bulk
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0200 1x 512 bytes
> bInterval 0
> Command pipe (0x01)
> Binary Object Store Descriptor:
> bLength 5
> bDescriptorType 15
> wTotalLength 22
> bNumDeviceCaps 2
> USB 2.0 Extension Device Capability:
> bLength 7
> bDescriptorType 16
> bDevCapabilityType 2
> bmAttributes 0x00000002
> Link Power Management (LPM) Supported
> SuperSpeed USB Device Capability:
> bLength 10
> bDescriptorType 16
> bDevCapabilityType 3
> bmAttributes 0x00
> wSpeedsSupported 0x000e
> Device can operate at Full Speed (12Mbps)
> Device can operate at High Speed (480Mbps)
> Device can operate at SuperSpeed (5Gbps)
> bFunctionalitySupport 1
> Lowest fully-functional device speed is Full Speed (12Mbps)
> bU1DevExitLat 10 micro seconds
> bU2DevExitLat 2047 micro seconds
> Device Status: 0x0001
> Self Powered
>
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