In function rh_call_control , there is no support for
HUB_CLEAR_TT_BUFFER hub request.
Suppose if we are connecting low/full speed devices to a USB 2.0 EHCI
, host controller., through a HUB , which has a transaction translator
. Then the following function "usb_hub_tt_clear_buffer" will be called
Hi all,
Has any body in this list worked wiht ARC-USB High Speed OTG
controller with an ULPI interface to an ULPI Transceiver(external).
I put the ARC OTG in HOST MODE.
I am observing that for HOST Mode, the controller is not able to
detect the Device connects when i connect self power devices li
Hi all,
Did any one work on the USB EHCI driver on a ARM platform (embedded).
Is the present EHCI driver code working on ARM platform where the
processor is in Big-Endian mode, and the USB-EHCI controller is put to
work in ltttle-endian mode.
Our problem is that the control transfers are not get
me if my observation is wrong
Thanks
rak
On 6/15/06, David Brownell <[EMAIL PROTECTED]> wrote:
> On Thursday 15 June 2006 8:29 am, rakesh kn wrote:
> > Hi,
> > The ARM processor is in BIG-ENDIAN mode. I have executed a program
> > to check in whcih mode is the pro
DMA address to little endian from native
endian (big-endian), would solve the problem..
Thanks
On 6/15/06, David Brownell <[EMAIL PROTECTED]> wrote:
> On Thursday 15 June 2006 4:14 am, rakesh kn wrote:
> > Hi all,
>
> Let me repeat my earlier multiple requests to you t
Hi all,
In Function qtd_fill() (FILE - ehci-q.c) , we get the DMA'able buffer
address, but when we fill the qTD, we convert the buffer address to
Little Endian. and assigning it as follows
qtd->hw_buf [0] = cpu_to_le32 ((u32)addr);
qtd->hw_buf_hi [0] = cpu_to_le32 ((u32)(addr >> 32));
If my pro
ll <[EMAIL PROTECTED]> wrote:
> On Thursday 08 June 2006 12:50 am, rakesh kn wrote:
>
> > 1) When a OTG hard disk(Self Powered) was connected, there was no
> > interrupt and my ehci_irq interrupt handler was not invoked.
> > When i power on the device i get a DISCONNECT eve
Hi ,
i am testing the ehci-hcd river for ARC HS OTG controller. I have the
following observations
when i try connecting devices.
After the probe, the POTRSCx values are 0x8c001000 for ARC controller
whcih is EHCI complaint.
COMMAND: 0x80b01
MODE: 0x7
STATUS: 0x88
INTERRUPT: 0x37
SET INTR ARE
Hi ,
i am testing the ehci-hcd river for ARC HS OTG controller. I have the
following observations
when i try connecting devices.
After the probe, the POTRSCx values are 0x8c001000 for ARC controller
whcih is EHCI complaint.
COMMAND: 0x80b01
MODE: 0x7
STATUS: 0x88
INTERRUPT: 0x37
SET INTR ARE
Hi all,
Port Reset and Port Suspend is done on ports on which device is connected.
\What is the difference between PORT SUSPEND, PORT RESET done using the
a ) SetPortFeature with Feature PORT_SUSPEND, PORT_RESUME as in USB
2.0 document in section 11.24.2.13.
b) Using the PORTSCx register in the
Hi All,
Our team is developing a USB OTG Controller driver for Linux 2.6.16.11
kernel on a board which runs on ARM Core . The driver is for ARC USB
OTG Controller.
There are three modules involved viz
Host Controller Driver
Device Contro
ocess a usb_hub
Returning from function usb_set_configuration
Notifier Function usbdev_notify is called
/home/rakesh/linux/sources/linux-2.6.16.11/drivers/usb/core/inode.c:
creating file '001'
Returning from function usb_new_device
Returned from function register_root_hub
Function hub_events is
Hi ,
If i set the hcd->power_budget field in the usb_hcd structure to 8mA
hcd->power_budget = 8mA,
then in the register_root_hub() function , the following line would
restrict the root hub power budget to each child to
rhdev->bus_mA = min(500u, hcd->power_budget) = 8mA,
Now when i connect a devi
t_urb called
Function hcd_submit_urb is called
Calling function rh_urb_enqueue to queue Setup URB to Root Hub
Function kick_khubd called . this wakes up hub_thread process a usb_hub
Returning from function usb_set_configuration
Notifier Function usbdev_notify is called
/home/rakesh/linux/sources/l
Hi ,
I have written the platform glue for ARC - EHCI controller. I provided
the suspend/resume call backs in struct platform_driver with CONFIG_PM
and CONFIG_USB_SUSPEND for selecti ve suspend/resume enabled.
My kernel is compile to be monolithic. So once the kernel boots up,
the driver is regis
Hi,
The OTG driver would consist of 3 kernel modules ,
Host driver module, Device driver module, and OTG transceiver driver module.
We have a SPH(Single Port Host) ARC Controller.
Since each of these modules have IRQ handlers and are requested to USB
IRQ with SH_IRQ and SA_INTERRUPT flags , we h
-- Forwarded message --
From: rakesh kn <[EMAIL PROTECTED]>
Date: Apr 21, 2006 1:50 PM
Subject: Testing HCD SUSPEND/RESUME in non-PCI bus based (ARC) controllers
To: David Brownell <[EMAIL PROTECTED]>
Hi,
The struct hc_driver in 2.6.16 provides 2 methods for powe
Hi,
I have Linux 2.6.11 linux source with me which has the BSP stuff to
get to run on a ARM platform . For this a separate directory is there
in arch/ where the BSP stuff is written .
I am required to move to 2.6.16 . My primary aim is to write the USB
Controller driver for the ARC chip present on
Hi All,
We are working in 2.6.11 kernel. We are supposed to test the linux
host controller driver for ARC-EHCI controller residing "on a non-PCI
based" bus.
All the basic functionality of EHCI driver for ARC can be tested using
usbtest.c kernel-mode test driver. We have to test suspend/resume
fu
Hi ,
Please Help me with this issue.
To test the EHCI- HCD driver , i was referring to the site
http://www.linux-usb.org/usbtest/
It was told that the "usbtest.c", driver test module, "testusb.c "
userland software is used.
Also the peripheral used is anything using a full speed Cypress EZ-USB c
Hi,
I am trying to test the working of ehci-hcd with a generic usb-device.
I downloaded "usbtest.c" from linux-usb-test site.
i am using kernel 2.6.11 .
I compiled the test driver (usbtest.ko) and insmod it.
when i run the test program "./testusb -a" , it says "usbfs files are missing".
When i
Hi,
Those who have done USB HCD Testing for ehci ,
Please suggest the USB2.0 Card Reader that u have
used , which was successfully tested using usbtest.c.
The card reader should be using a Cypress EX-USB chip.
Please mention the Product Name and if possible the manufacturers.
Please suggest Card
Hi,
For testing USB HCD driver , there is a kernel mode driver
"usbtest.c" , which comprises of 16 different tests.
I could get the first 2 tests.
Test 1 - Simple non-queued bulk "Sink" (IN) I/O tests
Test 2 - Simple non-queued bulk "Source" (OUT) I/O tests
How does the Test 3 and Test 4 work.
H i
ARC controller Core is having the ULPI interface as its
Transceiver. I have a some deviations in USBSTS, PORTSCx,OTGSC
registers for programming ULPI transceiver select, clocking etc.
Can u provide some help on general issues, on how the transceiver must
be approached while programming.
a) D
Hi,
Can any one explain what does the function "hub_set_power_budget" in
file hub.h does.?
I can see from the code that it sets the power_budget to a minimum of
250 mA (= 500 /2)or 4 mA (if OTG , power = 8 /2) ..?
I have an ARC controller, with an embedded TT , also it is an OTG controller.
For
Hi david,
The ehci_irq() function in struct hc_driver is the irq handler for the
EHCI host controller.
The EHCI specification section 4.15 specifies the different types of interrupts.
1) Transaction based interrupts
2)Host controller events (Port change events, etc.), and
3) Host Controller error
nd out the speed.(FS/HS/LS).
Where is that done.If so where and in which structure is the device
speed information stored after the device connect speed is found .?
Rakesh
Thanks
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Hi all,
Linux 2.6.16-rc6 has ehci-au1xxx.c file which is the EHCI host
controller driver for au1xxx .
Keeping the above framework which is a driver for a non-PCI EHCI
controller driver..
Can any one help me on how to provide OTG support to the above
framework. Please provide someinformation on w
for implementing my controller
driver. Please remember that my controller has an embedded TT.
(Please has any one worked on ARC USB-OTG controller drivers). This
would be of great help... Please mention the files which can be
re-used as it is
Hi
have you know any information about "usb gadget driver for OBEX."
help me.
thank you
regards
rakesh
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hi
i m linux user.
is there any linux doc on driver for USB GADGET for OBEX.?
can you help me???
thank you
regards rakesh
--
RAKESH YADAV
B.Tech final Year
Electronics and Communication ENGG
I.I.T. ROORKEE
---
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Is it possible to use Simple A-to-A cable for this purpose ? if not why not
? if yes then in what sense it is different from USB network cables ?
Thanks
- Original Message -
From: "Steve Calfee" <[EMAIL PROTECTED]>
To: "Rakesh A. Ughreja" <[EMAIL PROT
lf-duplex based on auto-negotiated partner ability .
memory : c7e57220
memory :
memory : c7e571e0
Thanks in Advance.
- Original Message -
From: "Brad Hards" <[EMAIL PROTECTED]>
To: "Rakesh A. Ughreja" <[EMAIL PROTECTED]>;
<[EMAIL PROTECTED]>
> > Yes, I am using ifconfig -a option. but it is not showing any usb0
device.
> > Currently I am experimenting on single PC. with no cable connected to
any
> > ports. I am able to successfully load all the necessory modules. lsmod
> > shows usage count 0.
> >
> > What can be the possible reasons
g on single PC. with no cable connected to any
ports. I am able to successfully load all the necessory modules. lsmod shows
usage count 0.
What can be the possible reasons for not showing usb0 ?
Regards
Rakesh
___
[EMAIL PROTECTED]
To
e any documentation or howto which can
provide me correct info ?
Thanks for quick response.
Rakesh
> I've had better luck with the more expensive Belkin products
> than the cheaper Prolific based ones, but as they say "your
> mileage may vary". (The "usbnet" dr
Linux which can do
this ? Or if I want to write my own application for this, is there any
source of information to begin with ? I am familliar with Serial
communication but never tried any thing on USB cable.
Thanks
Rakesh
___
[EMAIL PROTECTED]
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