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Bug #13880
open
usbsacm fails to open multi-config device
Status:
New
Priority:
Normal
Assignee:
-
Category:
driver - device drivers
Start date:
Due date:
% Done:
0%
Estimated time:
Difficulty:
Medium
Tags:
Gerrit CR:
External Bug:
Description
Any attempt to attach the following device to usbsacm(4D) results in the following error:
Jun 18 00:09:31 sun-pc usba: [ID 723738 kern.info] /pci@0,0/pci1022,1453@1,3/pci1022,43c6@0,2/pci1022,43c7@6/pci1b6f,7052@0/communications@2 (usb_mid8): can't support ugen for multiple configurations devices that have attached child interface drivers
the two configurations differ only in the number of data interfaces exposed (one vs two). I haven't used this device in such a long time that I've forgotten what the second config is used for, perhaps it is invoked only during firmware update? (Rockwell ACF chipsets contain a full microcontroller)
the device information from kadb:
INDEX DRIVER INST NODE GEN VID.PID PRODUCT
8 usb_mid 8 communications1.1 0803.3095 USB Modem
usba_device: 0xfffffe2d518a7580
mfg_prod_sn: Conexant - USB Modem - 24680246
communications, instance #8 (driver name: usb_mid)
/pci@0,0/pci1022,1453@1,3/pci1022,43c6@0,2/pci1022,43c7@6/pci1b6f,7052@0/communications@2
dip: 0xfffffe2d1175f738
usb_mid_statep: 0xfffffe2d11504bf0
usb_mid_errlevel: 0x4
{
modem, instance #-1 (driver not attached)
/pci@0,0/pci1022,1453@1,3/pci1022,43c6@0,2/pci1022,43c7@6/pci1b6f,7052@0/communications@2/modem
dip: 0xfffffe2d1175ebf8
data, instance #-1 (driver not attached)
/pci@0,0/pci1022,1453@1,3/pci1022,43c6@0,2/pci1022,43c7@6/pci1b6f,7052@0/communications@2/data
dip: 0xfffffe2d1175e928
}
Device Descriptor
{
bLength = 0x12
bDescriptorType = 0x1
bcdUSB = 0x110
bDeviceClass = 0x2
bDeviceSubClass = 0
bDeviceProtocol = 0
bMaxPacketSize0 = 0x40
idVendor = 0x803
idProduct = 0x3095
bcdDevice = 0x100
iManufacturer = 0x1
iProduct = 0x2
iSerialNumber = 0x3
bNumConfigurations = 0x2
}
-- Active Config Index 0
Configuration Descriptor
{
bLength = 0x9
bDescriptorType = 0x2
wTotalLength = 0x49
bNumInterfaces = 0x2
bConfigurationValue = 0x1
iConfiguration = 0x0
bmAttributes = 0x80
bMaxPower = 0x32
}
Interface Descriptor
{
bLength = 0x9
bDescriptorType = 0x4
bInterfaceNumber = 0x0
bAlternateSetting = 0x0
bNumEndpoints = 0x1
bInterfaceClass = 0x2
bInterfaceSubClass = 0x2
bInterfaceProtocol = 0x1
iInterface = 0x0
}
Endpoint Descriptor
{
bLength = 0x7
bDescriptorType = 0x5
bEndpointAddress = 0x81
bmAttributes = 0x3
wMaxPacketSize = 0x40
bInterval = 0x80
}
Interface Descriptor
{
bLength = 0x9
bDescriptorType = 0x4
bInterfaceNumber = 0x1
bAlternateSetting = 0x0
bNumEndpoints = 0x2
bInterfaceClass = 0xa
bInterfaceSubClass = 0x0
bInterfaceProtocol = 0x0
iInterface = 0x0
}
Endpoint Descriptor
{
bLength = 0x7
bDescriptorType = 0x5
bEndpointAddress = 0x82
bmAttributes = 0x2
wMaxPacketSize = 0x40
bInterval = 0x1
}
Endpoint Descriptor
{
bLength = 0x7
bDescriptorType = 0x5
bEndpointAddress = 0x2
bmAttributes = 0x2
wMaxPacketSize = 0x40
bInterval = 0x1
}
Unknown_Interface:0x24
{
05 24 00 10 01
}
Unknown_Interface:0x24
{
05 24 01 03 01
}
Unknown_Interface:0x24
{
04 24 02 07
}
Unknown_Interface:0x24
{
05 24 06 00 01
}
Unknown_Interface:0x24
{
06 24 07 04 48 03
}
-- Inactive Config Index 1
Configuration Descriptor
{
bLength = 0x9
bDescriptorType = 0x2
wTotalLength = 0x60
bNumInterfaces = 0x3
bConfigurationValue = 0x2
iConfiguration = 0x0
bmAttributes = 0x80
bMaxPower = 0x32
}
Interface Descriptor
{
bLength = 0x9
bDescriptorType = 0x4
bInterfaceNumber = 0x0
bAlternateSetting = 0x0
bNumEndpoints = 0x1
bInterfaceClass = 0x2
bInterfaceSubClass = 0x2
bInterfaceProtocol = 0x1
iInterface = 0x0
}
Endpoint Descriptor
{
bLength = 0x7
bDescriptorType = 0x5
bEndpointAddress = 0x81
bmAttributes = 0x3
wMaxPacketSize = 0x40
bInterval = 0x80
}
Interface Descriptor
{
bLength = 0x9
bDescriptorType = 0x4
bInterfaceNumber = 0x1
bAlternateSetting = 0x0
bNumEndpoints = 0x2
bInterfaceClass = 0xa
bInterfaceSubClass = 0x0
bInterfaceProtocol = 0x0
iInterface = 0x0
}
Endpoint Descriptor
{
bLength = 0x7
bDescriptorType = 0x5
bEndpointAddress = 0x82
bmAttributes = 0x2
wMaxPacketSize = 0x40
bInterval = 0xa
}
Endpoint Descriptor
{
bLength = 0x7
bDescriptorType = 0x5
bEndpointAddress = 0x2
bmAttributes = 0x2
wMaxPacketSize = 0x40
bInterval = 0xa
}
Interface Descriptor
{
bLength = 0x9
bDescriptorType = 0x4
bInterfaceNumber = 0x2
bAlternateSetting = 0x0
bNumEndpoints = 0x2
bInterfaceClass = 0xa
bInterfaceSubClass = 0x0
bInterfaceProtocol = 0x0
iInterface = 0x0
}
Endpoint Descriptor
{
bLength = 0x7
bDescriptorType = 0x5
bEndpointAddress = 0x83
bmAttributes = 0x2
wMaxPacketSize = 0x40
bInterval = 0x1
}
Endpoint Descriptor
{
bLength = 0x7
bDescriptorType = 0x5
bEndpointAddress = 0x3
bmAttributes = 0x2
wMaxPacketSize = 0x40
bInterval = 0x1
}
Unknown_Interface:0x24
{
05 24 00 10 01
}
Unknown_Interface:0x24
{
05 24 01 03 01
}
Unknown_Interface:0x24
{
04 24 02 07
}
Unknown_Interface:0x24
{
05 24 06 00 01
}
Unknown_Interface:0x24
{
06 24 07 04 48 03
}
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