From: Ian Pilcher <i.pilcher@comcast.net>
To: linux-hotplug@vger.kernel.org
Subject: Re: udev: rules using multiple sysfs directories
Date: Thu, 28 Apr 2005 20:28:31 +0000 [thread overview]
Message-ID: <d4rgmu$bja$1@sea.gmane.org> (raw)
In-Reply-To: <200504282041.56905.typo@mcflan.org>
I've got another example -- the AirPrime 5220 1xEVDO wireless modem for
which Greg K-H just whipped out a driver. (Thanks Greg!)
This is a composite device with two serial ports:
Bus 004 Device 004: ID 0f3d:0112
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 16
idVendor 0x0f3d
idProduct 0x0112
bcdDevice 0.01
iManufacturer 1 AirPrime, Incorporated
iProduct 2 AirPrime CDMA Wireless PC Card
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 62
bNumInterfaces 2
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xc0
Self Powered
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 3
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 4 Data Interface
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type none
Usage Type Data
wMaxPacketSize 0x0010 bytes 16 once
bInterval 128
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x8a EP 10 IN
bmAttributes 2
Transfer Type Bulk
Synch Type none
Usage Type Data
wMaxPacketSize 0x0040 bytes 64 once
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x0b EP 11 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type none
Usage Type Data
wMaxPacketSize 0x0040 bytes 64 once
bInterval 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 4 Data Interface
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 2
Transfer Type Bulk
Synch Type none
Usage Type Data
wMaxPacketSize 0x0040 bytes 64 once
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x05 EP 5 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type none
Usage Type Data
wMaxPacketSize 0x0040 bytes 64 once
bInterval 0
Language IDs: (length=4)
0409 English(US)
The first port (bInterfaceNumber 0) is the CDMA modem port; the second
port (bInterfaceNumber 1) is the "control port" which is used for
diagnostic information, etc. I would like to create persistent names
for these two ports (/dev/cdma_modem and /dev/cdma_ctl or something
similar). Since idVendor and idProduct are a directory above
bInterfaceNumber, there doesn't appear to be any way to do this.
This seems like a significant limitation for USB composite devices.
--
====================================
Ian Pilcher i.pilcher@comcast.net
====================================
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next prev parent reply other threads:[~2005-04-28 20:28 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-28 19:41 udev: rules using multiple sysfs directories James Macfarlane
2005-04-28 20:28 ` Ian Pilcher [this message]
2005-04-28 21:44 ` Kay Sievers
2005-04-29 0:59 ` James Macfarlane
2005-04-29 12:55 ` Ian Pilcher
2005-04-29 17:13 ` James Macfarlane
2005-04-29 18:15 ` Kay Sievers
2005-04-29 20:09 ` Greg KH
2005-04-30 0:44 ` Ian Pilcher
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