Re: Open Broadcast Software

> So at this time All I want is to be able to use the capture device with
> OBS. I imagine I am attempting to go the long way to get to where I want to
> be.
> lspci -vv outputs: 02:00.0 Multimedia video controller: Blackmagic Design
> Intensity Pro
>     Subsystem: Blackmagic Design Intensity Pro
>     Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
> Stepping- SERR- FastB2B- DisINTx-
>     Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
> <TAbort- <MAbort- >SERR- <PERR- INTx-
>     Interrupt: pin A routed to IRQ 255
>     Region 0: Memory at f7c00000 (32-bit, non-prefetchable) [disabled]
> [size=1M]
>     Region 1: Memory at f7b00000 (64-bit, non-prefetchable) [disabled]
> [size=1M]
>     Capabilities: <access denied>
> I'm going to start poking around for how to build a kernel module to
> enable the blackmagic design card

Thu Sep 13 20:34:18 MST 2018
make -C /lib/modules/4.15.0-34-generic/build M=/var/lib/dkms/blackmagic-io/10.3.7a4/build
make[1]: Entering directory '/usr/src/linux-headers-4.15.0-34-generic'
  CC [M]  /var/lib/dkms/blackmagic-io/10.3.7a4/build/bmio_client.o
  CC [M]  /var/lib/dkms/blackmagic-io/10.3.7a4/build/bmio_dev.o
  CC [M]  /var/lib/dkms/blackmagic-io/10.3.7a4/build/bmio_driver.o
  CC [M]  /var/lib/dkms/blackmagic-io/10.3.7a4/build/bmio_serial.o
  CC [M]  /var/lib/dkms/blackmagic-io/10.3.7a4/build/bmio_export.o
  CC [M]  /var/lib/dkms/blackmagic-io/10.3.7a4/build/bm_locks.o
  CC [M]  /var/lib/dkms/blackmagic-io/10.3.7a4/build/bm_mm.o
  CC [M]  /var/lib/dkms/blackmagic-io/10.3.7a4/build/bm_pci.o
/var/lib/dkms/blackmagic-io/10.3.7a4/build/bm_locks.c:190:14: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘bm_rmutex_lock’
 void __sched bm_rmutex_lock(struct bm_rmutex* mutex)
              ^~~~~~~~~~~~~~
scripts/Makefile.build:332: recipe for target '/var/lib/dkms/blackmagic-io/10.3.7a4/build/bm_locks.o' failed
make[2]: *** [/var/lib/dkms/blackmagic-io/10.3.7a4/build/bm_locks.o] Error 1
make[2]: *** Waiting for unfinished jobs....
/var/lib/dkms/blackmagic-io/10.3.7a4/build/bm_mm.c: In function ‘bm_get_user_pages’:
/var/lib/dkms/blackmagic-io/10.3.7a4/build/bm_mm.c:105:24: warning: passing argument 1 of ‘get_user_pages’ makes integer from pointer without a cast [-Wint-conversion]
   ret = get_user_pages(task, task->mm, (unsigned long)address & PAGE_MASK, umem->length, write, 0, umem->pages, NULL);
                        ^~~~
In file included from /var/lib/dkms/blackmagic-io/10.3.7a4/build/bm_mm.c:27:0:
./include/linux/mm.h:1398:6: note: expected ‘long unsigned int’ but argument is of type ‘struct task_struct *’
 long get_user_pages(unsigned long start, unsigned long nr_pages,
      ^~~~~~~~~~~~~~
/var/lib/dkms/blackmagic-io/10.3.7a4/build/bm_mm.c:105:30: warning: passing argument 2 of ‘get_user_pages’ makes integer from pointer without a cast [-Wint-conversion]
   ret = get_user_pages(task, task->mm, (unsigned long)address & PAGE_MASK, umem->length, write, 0, umem->pages, NULL);
                              ^~~~
In file included from /var/lib/dkms/blackmagic-io/10.3.7a4/build/bm_mm.c:27:0:
./include/linux/mm.h:1398:6: note: expected ‘long unsigned int’ but argument is of type ‘struct mm_struct *’
 long get_user_pages(unsigned long start, unsigned long nr_pages,
      ^~~~~~~~~~~~~~
/var/lib/dkms/blackmagic-io/10.3.7a4/build/bm_mm.c:105:76: warning: passing argument 4 of ‘get_user_pages’ makes pointer from integer without a cast [-Wint-conversion]
   ret = get_user_pages(task, task->mm, (unsigned long)address & PAGE_MASK, umem->length, write, 0, umem->pages, NULL);
                                                                            ^~~~
In file included from /var/lib/dkms/blackmagic-io/10.3.7a4/build/bm_mm.c:27:0:
./include/linux/mm.h:1398:6: note: expected ‘struct page **’ but argument is of type ‘size_t {aka long unsigned int}’
 long get_user_pages(unsigned long start, unsigned long nr_pages,
      ^~~~~~~~~~~~~~
/var/lib/dkms/blackmagic-io/10.3.7a4/build/bm_mm.c:105:90: error: incompatible type for argument 5 of ‘get_user_pages’
   ret = get_user_pages(task, task->mm, (unsigned long)address & PAGE_MASK, umem->length, write, 0, umem->pages, NULL);
                                                                                          ^~~~~
In file included from /var/lib/dkms/blackmagic-io/10.3.7a4/build/bm_mm.c:27:0:
./include/linux/mm.h:1398:6: note: expected ‘struct vm_area_struct **’ but argument is of type ‘bool {aka _Bool}’
 long get_user_pages(unsigned long start, unsigned long nr_pages,
      ^~~~~~~~~~~~~~
/var/lib/dkms/blackmagic-io/10.3.7a4/build/bm_mm.c:105:9: error: too many arguments to function ‘get_user_pages’
   ret = get_user_pages(task, task->mm, (unsigned long)address & PAGE_MASK, umem->length, write, 0, umem->pages, NULL);
         ^~~~~~~~~~~~~~
In file included from /var/lib/dkms/blackmagic-io/10.3.7a4/build/bm_mm.c:27:0:
./include/linux/mm.h:1398:6: note: declared here
 long get_user_pages(unsigned long start, unsigned long nr_pages,
      ^~~~~~~~~~~~~~
scripts/Makefile.build:332: recipe for target '/var/lib/dkms/blackmagic-io/10.3.7a4/build/bm_mm.o' failed
make[2]: *** [/var/lib/dkms/blackmagic-io/10.3.7a4/build/bm_mm.o] Error 1
/var/lib/dkms/blackmagic-io/10.3.7a4/build/bmio_client.c: In function ‘bmio_open’:
/var/lib/dkms/blackmagic-io/10.3.7a4/build/bmio_client.c:95:40: error: ‘struct file’ has no member named ‘f_dentry’; did you mean ‘f_owner’?
  drv = bmio_driver_find_by_inode(filp->f_dentry->d_inode);
                                        ^~~~~~~~
                                        f_owner
/var/lib/dkms/blackmagic-io/10.3.7a4/build/bmio_client.c: In function ‘bmio_read’:
/var/lib/dkms/blackmagic-io/10.3.7a4/build/bmio_client.c:174:9: error: implicit declaration of function ‘signal_pending’; did you mean ‘timer_pending’? [-Werror=implicit-function-declaration]
    if (!signal_pending(current))
         ^~~~~~~~~~~~~~
         timer_pending
cc1: some warnings being treated as errors
scripts/Makefile.build:332: recipe for target '/var/lib/dkms/blackmagic-io/10.3.7a4/build/bmio_client.o' failed
make[2]: *** [/var/lib/dkms/blackmagic-io/10.3.7a4/build/bmio_client.o] Error 1
Makefile:1552: recipe for target '_module_/var/lib/dkms/blackmagic-io/10.3.7a4/build' failed
make[1]: *** [_module_/var/lib/dkms/blackmagic-io/10.3.7a4/build] Error 2
make[1]: Leaving directory '/usr/src/linux-headers-4.15.0-34-generic'
Makefile:47: recipe for target 'all' failed
make: *** [all] Error 2