Marek Floriańczyk wrote:
Well I thought about USB because of two reasons:
1. I need Ethernet port on that Linux box to be used by my server and
it needs to be configured accordingly to home network. It would be
troublesome to use that.
2. USB is available on most of the computers, and usually
Sarah Sharp wrote:
I'm not sure, since I've never attempted to memory map PCI registers
from userspace. I was under the impression that you just can't do that.
Need root, and the kernel still gets a say, but yes, you can just do that.
http://stuge.se/physrd.c
//Peter
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杨苏立 Yang Su Li wrote:
Doesn't the controller come on a PCI card? That's all you need. What
else does the evaluation board have?
Unfortunately the USB controller doesn't come on a PCI card (to my surprise).
Correct.
I guess I would have to get an evaluation board
Peter Stuge wrote:
Googling NET2280EVB-SW finds
http://www.plxtech.com/pdf/usb/NcApi_Vs_NcFwApi.pdf which explains:
NET2280 firmware development software is available from PLX as
“NET2280EVB-SW”. This software applies to the NET2280 EVB and RDK
boards.
Linux replaces the function
Constantine Shulyupin wrote:
- what PDF documentation do you use? (You can just drop a link to PDF,
for example http://www.ti.com/lit/ds/symlink/omap4430.pdf)
I don't understand what you want to know. I have thousands of data
sheets for parts that I have used, use, or plan to use.
Russell King - ARM Linux wrote:
You have to be careful of copyright infringement.
Yeah, because a company might sue for datasheet copyright
infringement when someone is (if only potentially) buying
their product.
I would think that one through one more time. :)
//Peter
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Russell King - ARM Linux wrote:
If there was not a problem here, all documentation would explicitly
state that it is able to be freely distributed.
Lawyers like job security as much as the guy on the floor, theirs
just involves different psychology.
//Peter
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Constantine Shulyupin wrote:
It is not so easy to manage a lot of PDF documents
sometimes with strange code in file names.
I tend to rename them in some way that allows me to find them quickly
when I need them.
It is not easy to store and share links to documentation.
Storing is easy, I
Mostafa Kassem wrote:
the Wifi module is this one from connectone:
http://www.connectone.com/?page_id=233
This may be the dumbest USB wifi module I have seen.
Have you already developed a software stack which depends on the
proprietary vendor protocol that they call AT+i?
If no, I would
Greg KH wrote:
But, if Mostafa is stuck at RHEL 6, there's nothing that we can do
here to help out at all, sorry.
Maybe he can help test a driver on an up-to-date kernel.org release,
and then perhaps he can ask RH to backport the driver. It should also
not be very much effort.
Mostafa, can
Henrik Rydberg wrote:
What is the programming cable and software that uses it?
The programmer is impact, using libusbx-1.0.14-1.
Do you know for a fact that your version calls libusb-1.0? Did you
establish this with e.g. strace? ISE 11.1 impact uses only libusb.so,
ie. libusb-0.1.
Depending
Xiaofan Chen wrote:
On Thu, Oct 11, 2012 at 2:50 PM, Peter Stuge pe...@stuge.se wrote:
But it isn't certain that is is involved at all. If your impact
version uses libusb.so like in ISE 11.1 then it will not be. One way
to test is by trying to generate a libusb debug log. See
https
Elric Fu wrote:
It is a usb 1.1 device and works at full speed.
It is a frequent misunderstanding that a device must be 1.1 only
because it does not support high speed. This is not the case.
But the interesting thing is the bcdUSB field of device descriptor
is 0x0200.
It is perfectly legal
handling of large bulk transfers is completely
broken; the same user page is read over and over again. Fixed with
this patch.
Cc: sta...@kernel.org
Signed-off-by: Henrik Rydberg rydb...@euromail.se
Acked-by: Peter Stuge pe...@stuge.se
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Hej Henrik,
Henrik Rydberg wrote:
commit 3d97ff63f8997761f12c8fbe8082996c6eeaba1a
Author: Hans de Goede hdego...@redhat.com
Date: Wed Jul 4 09:18:03 2012 +0200
usbdevfs: Use scatter-gather lists for large bulk transfers
breaks an usb programming cable over here. The problem is
杨苏立 Yang Su Li wrote:
if SemiconductorStore still can deliver the above NET2280EVB PCI
card then you can realize the DRAM-backed storage device using a
Linux gadget driver, in a powerful PC with very little effort.
I assume I will have to do some PCI programming to move data from
memory
杨苏立 Yang Su Li wrote:
In order to experiment something I need to pretend that my phone has a
super fast SD card (faster than what is available in the market). So I
want to simulate it through desktop ramdisk (which is basically disk
in memory). And here is basically my plan:
1. Get an
杨苏立 Yang Su Li wrote:
is there some hardware I can by to turn my desktop into an USB
device or USB OTG device? Preferably this hardware should use my
desktop's memory to back-up its storage.
Not that I know of.
If the USB OTG host has a Micro-AB connector then yes, this cable is
needed
Alan Stern wrote:
is there some hardware I can by to turn my desktop into an USB
device or USB OTG device? Preferably this hardware should use my
desktop's memory to back-up its storage.
Not that I know of.
Linux supports the net2272 and net2280 boards.
I'm not sure if they can
杨苏立 Yang Su Li wrote:
Connecting an SSD to a cell phone is actually my initial idea. I
wanna try memory/ramdisk because I need fine control over the I/O
speed I get. As memory is a true random access device,
Even DRAM isn't completely random access, but memory controllers do
a good job at
Sedki wrote:
I'm not an expert, I just wanted to understand.
Why do you want to understand?
Would you like to use Linux for some task, or are you asking out of
academic interest? Both are fine, but you have to provide more
information about your motivation in order to get any useful reply.
Adrian Sandu wrote:
I wouldn't of expected this from WD ..
Like with Theodore's problem you don't really know for sure where the
problem was in your setup.
Any combination of USB controller hardware in PC, cable, and
electronics in drive enclosure can have caused your problem.
External disk
Lassi Väätämöinen wrote:
So apparently the USB 2.0 hub has a transaction translation going on,
when connecting a USB 1.1 device to it.
Yep.
And due to the translation, the 1.1 device shows up as USB 2.0 (EHCI)
device to the OS/driver. Did I get this correctly?
Not this second part. The OS
Adrian Sandu wrote:
I tried with a 3.3.8 , same thing happened. I don't understand why my
gentoo (asrock) fails and fedora(laptop) didn't ! :|
Try what Alan suggested, start the Gentoo userland with the Fedora
kernel.
Do you have some crazy USE flags for your toolchain?
If the Fedora kernel
Rene Buergel wrote:
- renamed CONFIG_USB_EZUSB to CONFIG_USB_EZUSB_FX2 to avoid build errors
Is this really the reason for the build error? I doubt it.
Also, does the code in fact support only FX2, neither older chips nor
newer FX3?
diff --git a/drivers/usb/misc/Kconfig
Rafael J. Wysocki wrote:
Well, we actually need to handle power domains appropriately.
..
Some work in that direction has been done in the ARM space, where we have
much more direct access to hardware, and I suppose it may be extended to
things like ganged sets of ports (which actually are
Rafael J. Wysocki wrote:
Is there already an API for power domains there? What does it look like?
Yes, there is, as it turns out. :-)
Please see drivers/base/power/domain.c and include/linux/pm_domain.h.
Of course, this only covers a limited set of use cases at the moment, but I
think
Hi,
Sarah Sharp wrote:
Two weeks ago at Linux Plumbers Conference, I presented about the
Intel Lynx Point USB port power off mechanism.
Good session with some participation, thanks to all!
The end result of those patches is that we expose a sysfs file per USB
port to userspace to allow
Sarah Sharp wrote:
a userspace program claims the interface via usbfs and reads from
the device when it wants to capture a finger scan. The kernel's
auto power policy would turn back on the port as soon as the
interface was claimed through usbfs.
This translates to a slightly less appealing
Sarah Sharp wrote:
How will userspace know why powering off the port does not work?
We can expose the power resources in sysfs, so userspace can figure out
which ports are under which power resources.
Sorry, I should have clarified.
If userspace really wants the port off (e.g. to
Peter Stuge wrote:
Hi all. Could someone tell me how to associate a USB Bus:Device
info with a /dev/entry?
This is subsystem-specific. Feel free to take inspiration from my
script for usb-serial at http://stuge.se/find430.sh
You'll have to change the code inside:
for usbiface
Matthew Garrett wrote:
+++ b/drivers/usb/host/pci-quirks.c
..
@@ -830,9 +830,17 @@ static void __devinit quirk_usb_handoff_xhci(struct
pci_dev *pdev)
*/
ext_cap_offset = xhci_find_next_cap_offset(base,
XHCI_HCC_PARAMS_OFFSET);
do {
+ if ((ext_cap_offset +
Hi Alexis,
Did you run the patch through checkpatch.pl before submitting it?
I think you will get a bunch of important and completely automatic
feedback when you do that. Please fix everything that the script
mentions.
Alexis R. Cortes wrote:
This patch is intended to work around a known
Alexis R. Cortes wrote:
This patch is intended to work around a known issue on the
SN65LVPE502CP USB3.0 re-driver that can delay the negotiation
between a device and the host past the usual handshake timeout,
and if that happens on the first insertion, the host controller
port will enter in
Alexey Filin wrote:
So USB is not a classic bus and not universal, it is a network
with non-constant delay.
Whatever classic bus means.. USB is a packet-based communications
bus with well-defined timing characteristics.
It is obviously not a local bus, as you know from PC architecture the
USB
Alexey Filin wrote:
For 2-byte read/write we could use either two bulk IN/OUT
endpoints (131 * 8kHz ~ 1 MHz) or one control endpoint (table 5-3, 42
* 8 kHz = 336 kHz).
If you can expand further on the details of your application then you
will be able to get possibly unparalelled expert
Valentin Sitdikov wrote:
How should user-space applications handle possibility of switching
between host and gadget mode (for example libusb if controller is
working as gadget ?)
When switching from host mode libusb simply sees that the other
device has disconnected, and libusb is not aware of
Adam Wozniak wrote:
so I know this is a control output message with setup values
bmRequestType=21, bRequest=01, wValue=0900, wIndex=0700, wLength=0005
and data of 01,0N,00,00,0a where N=1 for on and N=0 for off
How would I send this same packet from a userspace application?
Install a
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