Hi Paul,
As per my understanding, for BULK OUT we do queue a request with 512
bytes length since we do not
know the length of the transfer Host is going to send. For Control OUT
we know the length in wLength of
Setup packet, hence I assumed there is no difference in programming
model of Control IN
On Saturday 13 December 2014 05:17 PM, Muthu Mani wrote:
Adds support for USB-I2C interface of Cypress Semiconductor
CYUSBS234 USB-Serial Bridge controller.
The read/write operation is setup using vendor command through control endpoint
and actual data transfer happens through bulk in/out endpo
On Saturday 13 December 2014 05:17 PM, Muthu Mani wrote:
Adds support for USB-GPIO interface of Cypress Semiconductor
CYUSBS234 USB-Serial Bridge controller.
The GPIO get/set can be done through vendor command on control endpoint
for the configured gpios.
Details about the device can be found
> From: linux-usb-ow...@vger.kernel.org
> [mailto:linux-usb-ow...@vger.kernel.org] On Behalf Of sundeep subbaraya
> Sent: Friday, December 12, 2014 9:13 PM
>
> Hi Felipe,
>
> In DWC3 driver, for three stage Control OUT transfer there is a check:
>
>else if (!IS_ALIGNED(req->request.length,
Hi,
On Fri, Dec 12, 2014 at 11:24 PM, Kishon Vijay Abraham I wrote:
> hi,
>
> On Saturday 13 December 2014 05:49 AM, Doug Anderson wrote:
>> Yunzhi,
>>
>> On Fri, Dec 12, 2014 at 7:07 AM, Yunzhi Li wrote:
>>> This patch to add a generic PHY driver for ROCKCHIP usb PHYs,
>>> currently this driver
I'm seeing this as well, I've got some work in progress towards this,
but not finding the time I'd hoped. CH340 devices work "fine" with the
current linux driver, but CH341, very very very flaky, if at all.
On Sat, Dec 13, 2014 at 11:23:23PM +0530, Vedant Nevetia wrote:
> Thanks a lot! How would you recommend I then go on to submit
> full-scale drivers? Should I read through the whole of LDD3 or is
> there another means to acquire the knowledge?
Why not try working on tiny things first, the odds of y
Thanks a lot! How would you recommend I then go on to submit
full-scale drivers? Should I read through the whole of LDD3 or is
there another means to acquire the knowledge?
On Sat, Dec 13, 2014 at 9:06 PM, Greg KH wrote:
> On Sat, Dec 13, 2014 at 08:45:28PM +0530, Vedant Nevetia wrote:
>
>
>
> F
I'm connecting it to an external modem on the RS232 side. If I use
some other program to connect to the modem, it reports "modem not
responding". To debug further I'm minicom'ing to it. Once connected, I
type "AT" then press Enter. Screen output is pasted below (with Local
Echo set to No and Hex Di
Hello,
I noticed an usb related issue when recording from my airspy device;
so I created a bug in the bugzilla:
https://bugzilla.kernel.org/show_bug.cgi?id=89671
Please let me know what info I should add to help find the root cause.
Kind regards,
Udo
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On Sat, Dec 13, 2014 at 01:15:07PM +0800, Liangent wrote:
> Hello,
>
> I bought a new USB-RS232 cable and the system loads ch341.ko for me
> (Debian with kernel 3.14-2-amd64 and 3.16.0-4-amd64). However this
> module does not work with my cable (/dev/ttyUSB0 appears but the
> serial device doesn't
On Sat, Dec 13, 2014 at 01:04:48PM +0530, Vedant Nevetia wrote:
> Hello,
>
> I am sorry if this has been posted by someone else before. I'd really
> like some help.
>
> So a little background: I'm a 17 year old Linux enthusiast. I've
> always wanted to contribute in any way to the kernel. Now I f
> For repeated start (Sr) scenario, the STOP bit will not be set. For
> dummy write scenario (writing EEPROM address from I2C EEPROM slave),
> the STOP bit should not be set. But, for normal I2C write, the STOP
> bit should be set. We provide control to user to control when to
> STOP/NAK to handle
Adds support for USB-I2C interface of Cypress Semiconductor
CYUSBS234 USB-Serial Bridge controller.
The read/write operation is setup using vendor command through control endpoint
and actual data transfer happens through bulk in/out endpoints.
Details about the device can be found at:
http://www.
Adds support for USB-I2C/GPIO interfaces of Cypress Semiconductor
CYUSBS234 USB-Serial Bridge controller.
Details about the device can be found at:
http://www.cypress.com/?rID=84126
Separate cell drivers are available for I2C and GPIO. SPI and UART
are not supported yet.
Signed-off-by: Muthu Man
Adds support for USB-GPIO interface of Cypress Semiconductor
CYUSBS234 USB-Serial Bridge controller.
The GPIO get/set can be done through vendor command on control endpoint
for the configured gpios.
Details about the device can be found at:
http://www.cypress.com/?rID=84126
Signed-off-by: Muthu
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