The working group "VISA for Linux" of the IVI Foundation
www.ivifoundation.org specifies common rules, shared libraries and
drivers to implement the specification of "VPP-4.3: The VISA Library"
on Linux to be compatible with implementations on other operating systems.
The USBTMC protocol is part o
ioctl USBTMC_IOCTL_CANCEL_IO stops and kills all flying urbs of
last USBTMC_IOCTL_READ and USBTMC_IOCTL_WRITE function calls.
A subsequent call to USBTMC_IOCTL_READ or
USBTMC_IOCTL_WRITE_RESULT returns -ECANCELED with
information about current transferred data.
Signed-off-by: Guido Kiener
Reviewe
add ioctl USBTMC_IOCTL_MSG_IN_ATTR that returns the specific
bmTransferAttributes field of the last DEV_DEP_MSG_IN Bulk-IN
header. This header is received by the read() function. The
meaning of the (u8) bitmap bmTransferAttributes is:
Bit 0 = EOM flag is set when the last transfer of a USBTMC
mess
ioctl USBTMC_IOCTL_WRITE_RESULT copies current out_transfer_size
to given __u32 pointer and returns current out_status of the last
(asnynchronous) USBTMC_IOCTL_WRITE call.
Signed-off-by: Guido Kiener
Reviewed-by: Steve Bayless
---
drivers/usb/class/usbtmc.c | 25 +
inc
Submitted urbs are not allowed when system is suspended.
Thus the submitted urb waiting at interrupt pipe is killed
during suspend callback and submitted again when system resumes.
Signed-off-by: Guido Kiener
Reviewed-by: Steve Bayless
---
drivers/usb/class/usbtmc.c | 16 +++-
1 fil
The ioctl USBTMC_IOCTL_CLEANUP_IO kills all submitted urbs to OUT
and IN bulk, and clears all received data from IN bulk. Internal
transfer counters and error states are reset.
An application should use this ioctl after an asnychronous transfer
was canceled and/or error handling has finished.
Sig
Add USBTMC_IOCTL_CTRL_REQUEST to send arbitrary requests on the
control pipe. Used by specific applications of IVI Foundation,
Inc. to implement VISA API functions: viUsbControlIn/Out.
The maximum length of control request is set to 4k.
Signed-off-by: Guido Kiener
Reviewed-by: Steve Bayless
--
Add ioctl USBTMC_IOCTL_AUTO_ABORT to configure auto_abort for
each specific file handle.
Signed-off-by: Guido Kiener
Reviewed-by: Steve Bayless
---
drivers/usb/class/usbtmc.c | 23 ---
include/uapi/linux/usb/tmc.h | 1 +
2 files changed, 17 insertions(+), 7 deletions(-)
The USBTMC_IOCTL_READ call provides for generic synchronous and
asynchronous reads on bulk IN to implement vendor specific library
routines.
Depending on transfer_size the function submits one or more urbs (up
to 16) each with a size of up to 4kB.
The flag USBTMC_FLAG_IGNORE_TRAILER can be used w
The new ioctl USBTMC_IOCTL_WRITE sends a generic message to bulk OUT.
This ioctl is used for vendor specific or asynchronous I/O as well.
The message is split into chunks of 4k (page size).
Message size is aligned to 32 bit boundaries.
With flag USBTMC_FLAG_ASYNC the ioctl is non blocking.
With f
Wait until an SRQ (service request) is received on the interrupt pipe
or until the given period of time is expired. In contrast to the
poll() function this ioctl does not return when other (a)synchronous
I/O operations fail with EPOLLERR.
Signed-off-by: Guido Kiener
Reviewed-by: Steve Bayless
--
Remove redundant code and fix debug messages.
Signed-off-by: Guido Kiener
Reviewed-by: Steve Bayless
---
drivers/usb/class/usbtmc.c | 25 -
1 file changed, 8 insertions(+), 17 deletions(-)
diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c
index fb49a7
Add parameter 'tag' to function usbtmc_ioctl_abort_bulk_out_tag()
for future versions.
Use USBTMC_BUFSIZE (4k) instead of USBTMC_SIZE_IOBUFFER (2k).
Using USBTMC_SIZE_IOBUFFER is deprecated.
Insert a sleep of 50 ms between subsequent
CHECK_ABORT_BULK_OUT_STATUS control requests to avoid stressing
Use new usbtmc_generic_read function to maximize bandwidth
during long data transfer. Also fix reading of zero length
packet (ZLP) or trailing short packet.
The maximum input transfer size is limited to INT_MAX (=2GB).
Also remove redundant return in send_request_dev_dep_msg_in().
Signed-off-by: G
Add ioctl USBTMC_IOCTL_API_VERSION to get current API version
of usbtmc driver.
This is to allow an instrument library to determine whether
the driver API is compatible with the implementation.
The API may change in future versions. Therefore the macro
USBTMC_API_VERSION should be incremented whe
Signed-off-by: Guido Kiener
Reviewed-by: Steve Bayless
---
drivers/usb/class/usbtmc.c | 6 --
1 file changed, 6 deletions(-)
diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c
index 81144c0c4772..785eee3a6b89 100644
--- a/drivers/usb/class/usbtmc.c
+++ b/drivers/usb/class/
Add parameter 'tag' to function usbtmc_ioctl_abort_bulk_in_tag()
for future versions.
Remove calculation of max_size (=wMaxPacketSize) and wrong
condition (actual == max_size) in while loop. An abort operation
should always flush the complete Bulk-IN until a short packet is
received.
Return error
Signed-off-by: Guido Kiener
Reviewed-by: Steve Bayless
---
drivers/usb/class/usbtmc.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c
index 785eee3a6b89..6aef3447adcc 100644
--- a/drivers/usb/class/usbtmc.c
+++ b/dri
Remove calculation of max_size (=wMaxPacketSize) and wrong
condition (actual == max_size) in while loop. A device clear
should always flush the complete Bulk-IN FIFO.
Insert a sleep of 50 ms between subsequent CHECK_CLEAR_STATUS
control requests to avoid stressing the instrument with
repeated requ
Use common timeout macro USB_CTRL_GET_TIMEOUT (=5s) for all
usb_control_msg() function calls.
The macro USBTMC_TIMEOUT should only be used as default value for
Bulk IN/OUT transfers.
Signed-off-by: Guido Kiener
Reviewed-by: Steve Bayless
---
drivers/usb/class/usbtmc.c | 8
1 file chan
Use new usbtmc_generic_write function to maximize bandwidth
during long data transfer.
The maximum output transfer size is limited to INT_MAX (=2GB).
Signed-off-by: Guido Kiener
Reviewed-by: Steve Bayless
---
drivers/usb/class/usbtmc.c | 176 +++--
1 file changed
As all the properties of the usbtmc driver can now be
controlled on a per file descriptor basis by ioctl functions
the sysfs interface is of limited use.
We are not aware about applications that are using the sysfs
parameter TermChar, TermCharEnabled or auto_abort.
Signed-off-by: Guido Kiener
Rev
Reserve a suitable range of ioctl numbers for USBTMC driver.
Signed-off-by: Guido Kiener
Reviewed-by: Steve Bayless
---
Documentation/ioctl/ioctl-number.txt | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Documentation/ioctl/ioctl-number.txt
b/Documentation/ioctl/ioctl-numb
Hi Greg,
here's my pull request for v4.19. It's not very large this time around
with only 37 commits. Patches have been soaking for a while without any
reported incidents.
Let me know if you want anything to be changed.
Cheers
The following changes since commit d72e90f33aa4709ebecc5005562f5233
From: Kuninori Morimoto
By default all files without license information are under the default
license of the kernel, which is GPL version 2.
Signed-off-by: Kuninori Morimoto
---
drivers/usb/renesas_usbhs/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/usb/renesas_usbhs/K
On Mon, Jul 30, 2018 at 10:53:52AM +0300, Felipe Balbi wrote:
>
> Hi Greg,
>
> here's my pull request for v4.19. It's not very large this time around
> with only 37 commits. Patches have been soaking for a while without any
> reported incidents.
>
> Let me know if you want anything to be changed
Hi Stefan,
On 7/29/2018 12:33 PM, Stefan Wahren wrote:
> Hi,
>
> if i connect a UAS capable storage device to the Raspberry Pi, i'm getting
> the following output on 4.18rc:
>
> The driver for the USB controller dwc2_hsotg does not support
> scatter-gather which is
> required by
I cannot issue TRIM commands to SSD behind a JMS578-based sata to
usb-c adapter. Tried with Fedora 28 kernel and with latest
4.18.0-0.rc6.git0.1.vanilla.knurd.1.fc28.x86_64
lsblk -D shows that discard is not enabled, but the SSD has this
capability (see below)
However Windows 10 successfully TRIMs
On Mon, Jul 30, 2018 at 10:04:30AM +0200, Guido Kiener wrote:
> The working group "VISA for Linux" of the IVI Foundation
> www.ivifoundation.org specifies common rules, shared libraries and
> drivers to implement the specification of "VPP-4.3: The VISA Library"
> on Linux to be compatible with impl
Zitat von Greg KH :
On Mon, Jul 30, 2018 at 10:04:30AM +0200, Guido Kiener wrote:
The working group "VISA for Linux" of the IVI Foundation
www.ivifoundation.org specifies common rules, shared libraries and
drivers to implement the specification of "VPP-4.3: The VISA Library"
on Linux to be co
Hello,
Today my usb keyboard stopped working:
[513672.838235] usbhid 3-10.1:1.0: couldn't find an input interrupt endpoint
I happen to have two models of the same keyboard (Das Keyboard
Ultimate 4C), from the working one:
[ 37.865738] usb 1-1.1: New USB device found, idVendor=24f0, idProduct=01
On Mon, 30 Jul 2018, Nick Desaulniers wrote:
> Hello,
> Today my usb keyboard stopped working:
>
> [513672.838235] usbhid 3-10.1:1.0: couldn't find an input interrupt endpoint
>
> I happen to have two models of the same keyboard (Das Keyboard
> Ultimate 4C), from the working one:
> [ 37.865738
Hi Felipe,
On 7/29/2018 11:08 PM, Felipe Balbi wrote:
> Thinh Nguyen writes:
>> DWC3 must check for the BUFSIZ and update the req->remaining
>> regardless of transfer alignment. Returning early from transfer OUT
>> unalignment will skip updating the req->remaining.
>>
>> Fixes: c6267a51639b ("usb
Thinh Nguyen writes:
> Hi Felipe,
>
> On 7/29/2018 11:08 PM, Felipe Balbi wrote:
>> Thinh Nguyen writes:
>>> DWC3 must check for the BUFSIZ and update the req->remaining
>>> regardless of transfer alignment. Returning early from transfer OUT
>>> unalignment will skip updating the req->remaining.
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