hello
I confused about the best way to start and stop g_file_storage
function,
We know that before start g_file_storage, we must unmount filesystem
then after exit it , need to mount it.Why this function not be a part of
function existing in file_storage.c? I use hotplug mechanism to d
hello
Now I am working on add multiple usb serial port support to gserial.c,
I had refer that qualcomm 3G phone that support 3 usb port on windows pc.
On enumeration stage , with ONLY ONE usb reset, the host start four "80 06
00 01 00 00 12 00" each for a different virtual usb device,
hello.
Never develop a composite usb driver, Now I will develop a composite
usb-serial driver based on intel pxa270. It connect to windows pc that has
usb driver that create two virtual comm port.
I want to know the usual way to develop gadget driver's side of code,My
plan is like this:
hello.
I still not very clear with the concept of zero-length.Could anyone
explain with it? Does it means if send a 64 byte data(same with endpoint
max packet size), after send the 64byte, some usb hardware send a extra
zero-length packet, some usb hardware send nothing? what's about intel
hello.
Now my pxa27x board with g_serial.o function connect with windows pc,
I want the windows pc(using usbser.sys)support multiple serial virtual
ports(Now only one), So I could let differenet kind of message goes into
different ports.
Could anybody give me some suggestion? thank u r
hello,
I am using pxa271 on our customed board, and want to make usb device
to work as ACM device.
I use serial.c from 2.6.11.12 on linux-2.4.20 with a few modify to
header file(no single modify to serial.c). My pxa27x_udc works with
usb-storage, rndis, cdc. but when I insmod g_serial.o
Hello
I have implements usb-mass storage support on Intel pxa271. My backing
file is DiskOnChip(/dev/tffsa,/dev/tffsa1). Most of the time, it works
normal, but there still has a few questions:
First. when I use usb storage,I use hotplug script to umount /truefs1,
and when plug off usb cabl
Hello
I use DiskOnChip as usb-mass storage media on pxa271, Now I could put
file through windows into it, and windows could read the file. but the
problem puzzle me dozens of days, that _sometimes_ after a large mount of
data transfer and written, do_write hangs on for nearly ten seconds so
or fat32 on UFI device?
thanks for commenting my doubts.
From: Alan Stern <[EMAIL PROTECTED]>
To: tong changda <[EMAIL PROTECTED]>
CC: linux-usb-devel@lists.sourceforge.net
Subject: Re: [linux-usb-devel] how to format backup media for mass-storage
Date: Fri, 18 Feb 2005 22:30:32 -050
mount it on /truefs/, and could r/w file on it. Is the problem of
mkdosfs(v2.8)? or there is some issue with pxa271 driver.
I tried hard without any success
Thanks
From: Alan Stern <[EMAIL PROTECTED]>
To: tong changda <[EMAIL PROTECTED]>
CC: linux-usb-devel@lists.sourceforge.n
Hi,
Build Mass-storage based on pxa271, Now I want to format DOC as fat32
filesystem. First I run fdisk on Mobile on /dev/tffsa ,add a new partition,
change filesystem type as 0xb(fat32) then write, Now I could mount vfat on
mobile and read/write file on it, but connect with windows , No disk
Hello
I test usb massage driver based on intel pxa271 , now there is some
question.
after received SC_INQUIRY and then send a reply(seen by win pc) and
before send_status send 13 bytes , it received a reset from host, show
from following message.
from windows host, bushond, see
Hello
After trying the usb serial driver on linux-2.4.20, I found the max speed
is about 120kbytes/sec, My windows side driver is modified against
bulkusb(one sample of Windows DDK), I transfer a 2.2M file from window to
smartphone(pxa27x) with usb serial driver. It took about 18seconds.why it
is s
Hello.
I need to establish tcp/ip or serial connection through usb during
bootloader stage.Now I use blob to successfully established tcp/ip
connection with linux host(with usbdnet.o), Now if I connect with windows
box,during the enum stage, there is no indication to let me choose a driver
for
Hello.
I need to establish tcp/ip or serial connection through usb during
bootloader stage.Now I use blob to successfully established tcp/ip
connection with linux host(with usbdnet.o), Now if I connect with windows
box,during the enum stage, there is no indication to let me choose a driver
for
yes,there usb rndis driver lies some issue with power management.
IF pxa27x into sleep mode when usb is plug in, Only tried 4 times ,"usb0:
rndis_command_complete: rndis parse error -524", but if cpu into sleep when
usb is not plug in, it is all right. I will tried to contact with microsoft
. But
Thanks David.
Many times I couldn't think out the reason why,but simply find some ways to
avoid it:-(
In this case,I found if compile g_ether.o as module. So when this message
appear, simply ifconfig usb0 down, then rmmod/insmod is ok.So my driver had
to detect usb plug in and unplug action, use
I nearly finished porting pxa27x support rndis, but this message appear
occasionaly during emunation process.(Same things happed to lubbock with
2.6.5)
if you plug off usb cable then plug it on, after about 3 times or more,
following message appear,then if you want usb work, you had to reboot
lubb
I am porting pxa27x driver to linux-2.4.20 using gadget framework to
support rndis.
pxa27x driver nearly works. The driver init procedure is ok.
The problems appear after windows 2000 pc send a set_configuration
request.I could read out the configuration, interface, alterinterface from
UDCCR as 2,0
You are absolute right! After comment off all debug message, It could do
tcd/ip with pc windows 2k.Yes usb protocol require precise timing
requirement.
Thank you again!!!
From: David Brownell <[EMAIL PROTECTED]>
To: tong changda <[EMAIL PROTECTED]>
CC: [EMAIL PROTECTED]
Subject: Re
again for your
board knowledge to save me lots of times to locate problem.
Now I will continue to test rndis based on Intel Mainstone(pxa27x).
Best regards,
From: David Brownell <[EMAIL PROTECTED]>
To: tong changda <[EMAIL PROTECTED]>
Subject: Re: [linux-usb-devel] Did anyone h
te it further,any suggestion? Thanks
From: David Brownell <[EMAIL PROTECTED]>
To: tong changda <[EMAIL PROTECTED]>
CC: [EMAIL PROTECTED]
Subject: Re: [linux-usb-devel] Did anyone had successful run rndis based
on lubbock(pxa26x)?
Date: Fri, 28 May 2004 08:20:17 -0700
tong changda wrote:
Hell
: disconnected
vendor ID : 0x
vendor: Linux 2.6.5/pxa2xx_udc
From: David Brownell <[EMAIL PROTECTED]>
To: tong changda <[EMAIL PROTECTED]>
CC: [EMAIL PROTECTED]
Subject: Re: [linux-usb-devel] Did anyone had successful run rndis based
on lubbock(pxa26x)?
Date: Fri, 28 May 2004 08:20:1
Hello.
I have had kernel 2.6.5 successful running on lubbock. all usb-gadget
related had kept sync with the latest one got from
http://usb-gadget.bkbits.net:8080/gadget-2.6/, the windows driver had
download from microsoft site, and using the linux.inf from the 2.6.6
kernel.
I just made
I know this is bad to ask this question here, but I am sure someone here
could answer me for I am rather confused.
usbser.sys is used as usb modem driver on Windows platform.I want to send
vendor-specific or class specific request to the peer(xscale-based
developboard), but I don't find any prog
I want to develop usb modem support on xscale processor. the
serial_fd/serial.c have two configurations. Can I use the simple serial
configuration to support file download. and the other cdc configuration to
support usb modem? Windows box call set_configure to switch function?
for usb modem, th
Hello
I am new to usb, Now I got difficulity to understand usb class
definitions for communication device by reading the spec pdf document. The
reason I do that is I want to write USB modem driver firmware on intel
xscale-based PDA.
All I knew is On linux host side it is acm.o with usbcore
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