Recent changes to bugs

#93 Build of `linux-gpib-user` fails with `/usr/bin/sgml2xml:./linux-gpib.sgml:2:1:W: cannot generate system identifier for public text "-//OASIS//DTD DocBook V4.5//EN"`, `-:2: parser error : StartTag: invalid element name` and other related errors.

2025-12-10T13:58:45.400000Z

... and here are the attachments.

Build of `linux-gpib-user` fails with `/usr/bin/sgml2xml:./linux-gpib.sgml:2:1:W: cannot generate system identifier for public text "-//OASIS//DTD DocBook V4.5//EN"`, `-:2: parser error : StartTag: invalid element name` and other related errors.

2025-12-10T13:55:36.969000Z

Ahoj!,

I try to build linux-gpib-user (latest git checkout; hash of the latest git commit: bef0c6, from 2025-11-28) as follows:

./bootstrap

./configure \
  --prefix=/usr \
  --sysconfdir=/etc \
  --bindir=/usr/bin \
  --sbindir=/usr/bin \
  --enable-shared \
  --enable-static \
  --enable-guile-binding \
  --enable-perl-binding \
  --enable-php-binding \
  --enable-python-binding \
  --enable-tcl-binding \
  --disable-documentation

make -j1

I build on Artix GNU/Linux (rolling release).

The make step fails with:

[...]
{ /usr/bin/sgml2xml -x no-expand-internal -x no-internal-decl -x preserve-case  ./linux-gpib.sgml | \
/usr/bin/xsltproc --param man.authors.section.enabled 0 --param man.output.in.separate.dir 1 \
--xinclude /usr/share/xml/docbook/xsl-stylesheets-1.79.2/manpages/docbook.xsl -; } && { touch man; }
/usr/bin/sgml2xml:./linux-gpib.sgml:2:1:W: cannot generate system identifier for public text "-//OASIS//DTD DocBook V4.5//EN"
/usr/bin/sgml2xml:./linux-gpib.sgml:5:0:E: reference to entity "ARTICLE" for which no system identifier could be generated
/usr/bin/sgml2xml:./linux-gpib.sgml:1:0: entity was defined here
/usr/bin/sgml2xml:./linux-gpib.sgml:5:0:E: DTD did not contain element declaration for document type name
[...]
/usr/bin/sgml2xml:./linux-gpib.sgml:480:5:E: element "ROW" undefined
/usr/bin/sgml2xml:I: maximum number of errors (200) reached; change with -E option
-:2: parser error : StartTag: invalid element name
<
 ^
unable to parse -
make[2]: *** [Makefile:758: man] Error 6
make[2]: Leaving directory '/var/cache/makepkg/build/linux-gpib-git/src/linux-gpib/linux-gpib-user/doc'
make[1]: *** [Makefile:455: all-recursive] Error 1
make[1]: Leaving directory '/var/cache/makepkg/build/linux-gpib-git/src/linux-gpib/linux-gpib-user'
make: *** [Makefile:387: all] Error 2

I attach:

Full terminal output of ./bootstrap: bootstrap.log,
Full terminal output of the ./configure run: configure.log,
Full terminal output of the make run: make.log,
config.log which is generated by ./configure: config.log.

Regards!

#92 Compilation failing on RHEL 8.10

2025-11-05T14:11:34.257000Z

I just noticed how to upload the logifles. Including those....

#92 Compilation failing on RHEL 8.10

2025-11-05T14:10:11.424000Z

@DaveP: Sorry for the delay. I was using the latest release from the repository itself.

The first errors I get are (the full error output is to long to directly include here):

make -C /lib/modules/`uname -r`/build V=0 modules \
                M="/home/myaccount/Downloads/linux-gpib/linux-gpib-kernel/drivers/gpib" \
                GPIB_TOP_DIR=/home/myaccount/Downloads/linux-gpib/linux-gpib-kernel \
                CONFIG_GPIB_ISA="" \
                GPIB_CONFIG_PCMCIA="0" \
                HAVE_DEV_OF_NODE= \
                CLASS_CREATE1ARG=0 \
                GPIB_CONFIG_KERNEL_DEBUG=0
make[1]: Entering directory '/usr/src/kernels/4.18.0-553.81.1.el8_10.x86_64'
  CC [M]  /home/myaccount/Downloads/linux-gpib/linux-gpib-kernel/drivers/gpib/agilent_82350b/agilent_82350b.o
In file included from ././include/linux/compiler_types.h:67,
                 from <command-line>:
./include/linux/compiler-gcc.h:182: warning: "fallthrough" redefined
 # define fallthrough   __attribute__((__fallthrough__))

In file included from ././include/linux/compiler_types.h:58,
                 from <command-line>:
/home/myaccount/Downloads/linux-gpib/linux-gpib-kernel/compat/include/linux/compiler_attributes.h:25: note: this is the location of the previous definition
 #define fallthrough  do {} while (0)  /* fallthrough */

In file included from <command-line>:
././include/linux/compiler_types.h:147:58: error: unknown type name ‘__gnu_inline’
 #define inline inline                                    __gnu_inline \
                                                          ^~~~~~~~~~~~
./arch/x86/include/asm/barrier.h:36:8: note: in expansion of macro ‘inline’
 static inline unsigned long array_index_mask_nospec(unsigned long index,
        ^~~~~~
././include/linux/compiler_types.h:148:2: warning: variable ‘__maybe_unused’ declared ‘inline’
  __maybe_unused notrace
  ^~~~~~~~~~~~~~
./arch/x86/include/asm/barrier.h:36:8: note: in expansion of macro ‘inline’
 static inline unsigned long array_index_mask_nospec(unsigned long index,
        ^~~~~~
././include/linux/compiler_types.h:148:2: error: ‘no_instrument_function’ attribute applies only to functions
  __maybe_unused notrace
  ^~~~~~~~~~~~~~
./arch/x86/include/asm/barrier.h:36:8: note: in expansion of macro ‘inline’
 static inline unsigned long array_index_mask_nospec(unsigned long index,
        ^~~~~~
In file included from ./include/linux/compiler.h:267,
..../

After fixing the above, the second error that required the fix in the make file :

In file included from ././include/linux/compiler_types.h:58,
                 from <command-line>:
/home/myaccount/Downloads/linux-gpib/linux-gpib-kernel/compat/include/linux/compiler_attributes.h:29: note: this is the location of the previous definition
 #define fallthrough  do {} while (0)  /* fallthrough */

/home/myaccount/Downloads/linux-gpib/linux-gpib-kernel/drivers/gpib/fmh_gpib/fmh_gpib.c: In function ‘fmh_gpib_attach_impl’:
/home/myaccount/Downloads/linux-gpib/linux-gpib-kernel/drivers/gpib/fmh_gpib/fmh_gpib.c:1388:50: error: passing argument 4 of ‘driver_find_device’ from incompatible pointer type [-Werror=incompatible-pointer-types]
      NULL, (DRIVER_FIND_DEVICE_DATA_TYPE)config, &fmh_gpib_device_match);
                                                  ^~~~~~~~~~~~~~~~~~~~~~
In file included from /home/myaccount/Downloads/linux-gpib/linux-gpib-kernel/compat/include/linux/device.h:94,
                 from ./include/linux/dmaengine.h:8,
                 from /home/myaccount/Downloads/linux-gpib/linux-gpib-kernel/drivers/gpib/fmh_gpib/fmh_gpib.h:9,
                 from /home/myaccount/Downloads/linux-gpib/linux-gpib-kernel/drivers/gpib/fmh_gpib/fmh_gpib.c:19:
./include/linux/device.h:454:16: note: expected ‘int (*)(struct device *, const void *)’ but argument is of type ‘int (*)(struct device *, void *)’
 struct device *driver_find_device(struct device_driver *drv,
                ^~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors

#92 Compilation failing on RHEL 8.10

2025-10-23T14:57:02.890000Z

What version of linux-gpib are you using ?
Also please send the compilation error messages.
thanks,
-DaveP

Compilation failing on RHEL 8.10

2025-10-20T12:28:38.549000Z

Compilation on RHEL 8.10 currently failing due to. I could temporary fixed this by:
* Lowering the kernel version check to 4,18,0 in compat/include/linux/compiler_attributes.h (possible failing due to backport of fallthrough in RHEL kernel)
* Default GCC option in RHEL 8.10 seems to be -Werror=incompatible-pointer-types. Added sibdir-cclags-y += -Wno-error=incompatible-pointer-types to drivers/gpib/Makefile

#91 Linux kernel 6.12 bugfix

2025-09-22T13:28:58.556000Z

Wasn't fixed in SVN trunk (revision 2106), but you can close it, if it is now fixed.

#91 Linux kernel 6.12 bugfix

2025-09-22T13:18:14.781000Z

This is fixed in the git repo, albeit using another approach.

Linux kernel 6.12 bugfix

2025-09-20T06:12:26.974000Z

The linux-gpib kernel modules fail to build on Linux kernel 6.12+ due to GPIO API changes.
The GPIOF_DIR_IN flag has been removed from the kernel's GPIO subsystem.

Error encountered:
/drivers/gpib/gpio/gpib_bitbang.c:968:68: error: 'GPIOF_DIR_IN' undeclared

Environment:
- Kernel version: 6.12.41+deb13-amd64
- linux-gpib version: SVN trunk (revision 2106)
- Distribution: Debian

I fixed it:
Index: linux-gpib-kernel/drivers/gpib/gpio/gpib_bitbang.c
===================================================================
--- linux-gpib-kernel/drivers/gpib/gpio/gpib_bitbang.c (revision 2106)
+++ linux-gpib-kernel/drivers/gpib/gpio/gpib_bitbang.c (working copy)
@@ -965,7 +965,8 @@
int j;
int last = sn7516x ? GPIB_PINS + SN7516X_PINS : GPIB_PINS ;
for ( j=0 ; j<last ; j++ ) {
- if (gpio_request_one (gpios_vector[j]+gpio_offset, GPIOF_DIR_IN, NULL)) break;
+ if (gpio_request(gpios_vector[j]+gpio_offset, NULL)) break;
+ gpio_direction_input(gpios_vector[j]+gpio_offset);
all_descriptors[j] = gpio_to_desc (gpios_vector[j]+gpio_offset);
}
if ( j != last) { / error - undo what already done /

#87 ibwait does not time out after waiting >1.5s for ibrda to complete (NI-USB-HS)

2025-03-25T06:58:19.297000Z

status: open --> closed-fixed