El día Wednesday, December 28, 2011 a las 12:06:11PM +0200, Aleksandr Rybalko
escribió:
> >> how those values fit with the speed of the device /dev/cuaU0.0 which
> >> I set in ppp.conf to the maximum value as
> >>
> >> set speed 921600
> >>
> >> and as well in /usr/include/sys/_termios.h I don't see any higher
> >> possible speed for the interface... do I miss something?
> >>
>
> Hi Matthias,
> IIRC "set speed" ignored for USB modems (only USB-to-serial or USB
> dialup modems use it).
>
> Some time ago I deal with that problem for linux based devices and
> found that problem may be fixed by ignore reported USB endpoint
> transfer size. Some devices report it with value 0x200 (512 bytes) but
> works fine with 0x1000 (4096). And with last value give much bigger
> throughput.
>
> This is wMaxPacketSize value in `usbconfig -u 4 -a 2
> dump_curr_config_desc` output.
>
> u3g driver already set it to 2048, if your modem hooked by another
> driver try to change it from 0 (use reported) to 2048/4096.
Hi Aleksandr,
The device attaches to the u3g driver:
/var/log/messages:
...
Dec 28 08:01:20 tiny kernel: ugen4.4: <HUAWEI Technology> at usbus4
Dec 28 08:01:20 tiny kernel: u3g0: <HUAWEI Technology HUAWEI Mobile, class 0/0,
rev 2.00/0.00, addr 4> on usbus4
Dec 28 08:01:20 tiny kernel: u3g0: Found 4 ports.
and the usbconfig(8) gives the attached output below; most of the
wMaxPacketSize values are 0x0200, some are 0x0040; which one should I
change to 0x1000 (4096), and how?
the source of the driver sys/dev/usb/serial/u3g.c has a #define for
U3G_BSIZE set to 2048 and sets this into the structs for U3G_BULK_WR and
U3G_BULK_RD, should this be visible with usbconfig(8)? the output below
was done while the link is up;
Thanks
matthias
# usbconfig -u 4 -a 4 dump_curr_config_desc
ugen4.4: <HUAWEI Mobile HUAWEI Technology> at usbus4, cfg=0 md=HOST spd=HIGH
(480Mbps) pwr=ON
Configuration index 0
bLength = 0x0009
bDescriptorType = 0x0002
wTotalLength = 0x00a1
bNumInterfaces = 0x0006
bConfigurationValue = 0x0001
iConfiguration = 0x0001 <Huawei Configuration>
bmAttributes = 0x00e0
bMaxPower = 0x00fa
Interface 0
bLength = 0x0009
bDescriptorType = 0x0004
bInterfaceNumber = 0x0000
bAlternateSetting = 0x0000
bNumEndpoints = 0x0003
bInterfaceClass = 0x00ff
bInterfaceSubClass = 0x00ff
bInterfaceProtocol = 0x00ff
iInterface = 0x0000 <no string>
Endpoint 0
bLength = 0x0007
bDescriptorType = 0x0005
bEndpointAddress = 0x0081 <IN>
bmAttributes = 0x0003 <INTERRUPT>
wMaxPacketSize = 0x0040
bInterval = 0x0005
bRefresh = 0x0000
bSynchAddress = 0x0000
Endpoint 1
bLength = 0x0007
bDescriptorType = 0x0005
bEndpointAddress = 0x0082 <IN>
bmAttributes = 0x0002 <BULK>
wMaxPacketSize = 0x0200
bInterval = 0x0020
bRefresh = 0x0000
bSynchAddress = 0x0000
Endpoint 2
bLength = 0x0007
bDescriptorType = 0x0005
bEndpointAddress = 0x0001 <OUT>
bmAttributes = 0x0002 <BULK>
wMaxPacketSize = 0x0200
bInterval = 0x0020
bRefresh = 0x0000
bSynchAddress = 0x0000
Interface 1
bLength = 0x0009
bDescriptorType = 0x0004
bInterfaceNumber = 0x0001
bAlternateSetting = 0x0000
bNumEndpoints = 0x0003
bInterfaceClass = 0x00ff
bInterfaceSubClass = 0x00ff
bInterfaceProtocol = 0x00ff
iInterface = 0x0000 <no string>
Endpoint 0
bLength = 0x0007
bDescriptorType = 0x0005
bEndpointAddress = 0x0083 <IN>
bmAttributes = 0x0003 <INTERRUPT>
wMaxPacketSize = 0x0040
bInterval = 0x0005
bRefresh = 0x0000
bSynchAddress = 0x0000
Endpoint 1
bLength = 0x0007
bDescriptorType = 0x0005
bEndpointAddress = 0x0084 <IN>
bmAttributes = 0x0002 <BULK>
wMaxPacketSize = 0x0200
bInterval = 0x0020
bRefresh = 0x0000
bSynchAddress = 0x0000
Endpoint 2
bLength = 0x0007
bDescriptorType = 0x0005
bEndpointAddress = 0x0002 <OUT>
bmAttributes = 0x0002 <BULK>
wMaxPacketSize = 0x0200
bInterval = 0x0020
bRefresh = 0x0000
bSynchAddress = 0x0000
Interface 2
bLength = 0x0009
bDescriptorType = 0x0004
bInterfaceNumber = 0x0002
bAlternateSetting = 0x0000
bNumEndpoints = 0x0002
bInterfaceClass = 0x00ff
bInterfaceSubClass = 0x00ff
bInterfaceProtocol = 0x00ff
iInterface = 0x0000 <no string>
Endpoint 0
bLength = 0x0007
bDescriptorType = 0x0005
bEndpointAddress = 0x0085 <IN>
bmAttributes = 0x0002 <BULK>
wMaxPacketSize = 0x0200
bInterval = 0x0020
bRefresh = 0x0000
bSynchAddress = 0x0000
Endpoint 1
bLength = 0x0007
bDescriptorType = 0x0005
bEndpointAddress = 0x0003 <OUT>
bmAttributes = 0x0002 <BULK>
wMaxPacketSize = 0x0200
bInterval = 0x0020
bRefresh = 0x0000
bSynchAddress = 0x0000
Interface 3
bLength = 0x0009
bDescriptorType = 0x0004
bInterfaceNumber = 0x0003
bAlternateSetting = 0x0000
bNumEndpoints = 0x0002
bInterfaceClass = 0x00ff
bInterfaceSubClass = 0x00ff
bInterfaceProtocol = 0x00ff
iInterface = 0x0000 <no string>
Endpoint 0
bLength = 0x0007
bDescriptorType = 0x0005
bEndpointAddress = 0x0086 <IN>
bmAttributes = 0x0002 <BULK>
wMaxPacketSize = 0x0200
bInterval = 0x0020
bRefresh = 0x0000
bSynchAddress = 0x0000
Endpoint 1
bLength = 0x0007
bDescriptorType = 0x0005
bEndpointAddress = 0x0004 <OUT>
bmAttributes = 0x0002 <BULK>
wMaxPacketSize = 0x0200
bInterval = 0x0020
bRefresh = 0x0000
bSynchAddress = 0x0000
Interface 4
bLength = 0x0009
bDescriptorType = 0x0004
bInterfaceNumber = 0x0004
bAlternateSetting = 0x0000
bNumEndpoints = 0x0002
bInterfaceClass = 0x0008
bInterfaceSubClass = 0x0006
bInterfaceProtocol = 0x0050
iInterface = 0x0000 <no string>
Endpoint 0
bLength = 0x0007
bDescriptorType = 0x0005
bEndpointAddress = 0x0087 <IN>
bmAttributes = 0x0002 <BULK>
wMaxPacketSize = 0x0200
bInterval = 0x0000
bRefresh = 0x0000
bSynchAddress = 0x0000
Endpoint 1
bLength = 0x0007
bDescriptorType = 0x0005
bEndpointAddress = 0x0005 <OUT>
bmAttributes = 0x0002 <BULK>
wMaxPacketSize = 0x0200
bInterval = 0x0000
bRefresh = 0x0000
bSynchAddress = 0x0000
Interface 5
bLength = 0x0009
bDescriptorType = 0x0004
bInterfaceNumber = 0x0005
bAlternateSetting = 0x0000
bNumEndpoints = 0x0002
bInterfaceClass = 0x0008
bInterfaceSubClass = 0x0006
bInterfaceProtocol = 0x0050
iInterface = 0x0000 <no string>
Endpoint 0
bLength = 0x0007
bDescriptorType = 0x0005
bEndpointAddress = 0x0006 <OUT>
bmAttributes = 0x0002 <BULK>
wMaxPacketSize = 0x0200
bInterval = 0x0000
bRefresh = 0x0000
bSynchAddress = 0x0000
Endpoint 1
bLength = 0x0007
bDescriptorType = 0x0005
bEndpointAddress = 0x0088 <IN>
bmAttributes = 0x0002 <BULK>
wMaxPacketSize = 0x0200
bInterval = 0x0000
bRefresh = 0x0000
bSynchAddress = 0x0000
--
Matthias Apitz
e <g...@unixarea.de> - w http://www.unixarea.de/
UNIX since V7 on PDP-11, UNIX on mainframe since ESER 1055 (IBM /370)
UNIX on x86 since SVR4.2 UnixWare 2.1.2, FreeBSD since 2.2.5
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