USB CDC-ACM device under FreeBSD and HPS stack

[Hans Petter Selasky]

Hi,

Edit "/sys/dev/usb/ugensa.c" and add the VID+PID to the "ugensa_devs" 
structure. Recompile the ugensa module (/sys/module/ugensa) and load it.

--HPS

On Wednesday 30 April 2008, Xiaofan Chen wrote:
> On Wed, Apr 30, 2008 at 3:45 AM, Hans Petter Selasky <hselasky at c2i.net> 
wrote:
> >  > As for the generic CDC-ACM device (the Olimex LPC-P2148), I do not
> >  > know how to load the necessary kernel module to get it work as a
> >  > usb-serial device.
> >  >
> >  > Under Linux, there is a generic cdc-acm device support.
> >
> >  kldload umodem
>
> I tried that and nothing happens.
>
>
> [root at freebsd7 ~]# kldload umodem
> [root at freebsd7 ~]# kldstat
> Id Refs Address    Size     Name
>  1   18 0xc0400000 90568c   kernel
>  2    1 0xc0d06000 6f88     snd_ich.ko
>  3    2 0xc0d0d000 4a5ac    sound.ko
>  4    1 0xc0d58000 6a32c    acpi.ko
>  5    1 0xc4492000 22000    linux.ko
>  6    1 0xc46f7000 21000    radeon.ko
>  7    1 0xc4718000 f000     drm.ko
> 10    1 0xc4d9a000 4000     umodem.ko
> 11    1 0xc4d9f000 4000     ucom.ko
> [root at freebsd7 ~]# dmesg
> (nothing happens).
> [root at freebsd7 ~]# kldload ugen
> [root at freebsd7 ~]# dmesg
> ugen0: <vendor 0x10d6 USB 2.0(HS) Flash Disk, class 0/0, rev
> 2.00/1.00, addr 2> on usb2
> ugen1: <LPCUSB USBSerial, class 2/0, rev 2.00/1.00, addr 3> on usb0
>
> [root at freebsd7 ~]# lsusb -vvv
>
> Bus /dev/usb0 Device /dev/ugen1: ID ffff:0005
> Device Descriptor:
>   bLength                18
>   bDescriptorType         1
>   bcdUSB               2.00
>   bDeviceClass            2 Communications
>   bDeviceSubClass         0
>   bDeviceProtocol         0
>   bMaxPacketSize0        64
>   idVendor           0xffff
>   idProduct          0x0005
>   bcdDevice            1.00
>   iManufacturer           1 LPCUSB
>   iProduct                2 USBSerial
>   iSerial                 3 DEADC0DE
>   bNumConfigurations      1
>   Configuration Descriptor:
>     bLength                 9
>     bDescriptorType         2
>     wTotalLength           67
>     bNumInterfaces          2
>     bConfigurationValue     1
>     iConfiguration          0
>     bmAttributes         0xc0
>       Self Powered
>     MaxPower              100mA
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        0
>       bAlternateSetting       0
>       bNumEndpoints           1
>       bInterfaceClass         2 Communications
>       bInterfaceSubClass      2 Abstract (modem)
>       bInterfaceProtocol      1 AT-commands (v.25ter)
>       iInterface              0
>       CDC Header:
>         bcdCDC               1.10
>       CDC Call Management:
>         bmCapabilities       0x01
>           call management
>         bDataInterface          1
>       CDC ACM:
>         bmCapabilities       0x02
>           line coding and serial state
>       CDC Union:
>         bMasterInterface        0
>         bSlaveInterface         1
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x81  EP 1 IN
>         bmAttributes            3
>           Transfer Type            Interrupt
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0008  1x 8 bytes
>         bInterval              10
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        1
>       bAlternateSetting       0
>       bNumEndpoints           2
>       bInterfaceClass        10 CDC Data
>       bInterfaceSubClass      0 Unused
>       bInterfaceProtocol      0
>       iInterface              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  1x 64 bytes
>         bInterval               0
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x82  EP 2 IN
>         bmAttributes            2
>           Transfer Type            Bulk
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0040  1x 64 bytes
>         bInterval               0
> can't get device qualifier: Input/output error
> can't get debug descriptor: Input/output error
> Device Status:     0x0000
>   (Bus Powered)
>
>
> Xiaofan