Problem compiling backported version - please help #18
Comments
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Hi @PA3FUN, No need to apologise; I accidentally used some constructs in the code that I shouldn't have, which causes it to not build on older distros. Can you try the new v1.3a that I uploaded for you here: https://github.com/geoffreybennett/scarlett-gen2/releases/tag/v6.9-v1.3 Let me know how you go please. Regards, |
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Hi Geoffrey. Thanks for your prompt reply!
Since I obviously don't have physical access to the keyboard I'm not able to boot the box in its original 5.8.15-kernel again, and therefore not able to do the test right now :( . The good news related to the kernel-update mentioned is that a) the scarlett-gen2 driver is indeed present in this kernel and b) building the alsa-scarlet-gui on this kernel went perfectly well, following the "flatpak-build" route described in the associated READ.me-file. So basically I'm able to configure the Focusrite connected to the box :). Despite having a working set-up already; I expect to be back home in roughly two weeks, will then do the test and get back to you with an update! Greetings from Meuzac, France. |
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No problem, and that's great news! Enjoy your holiday! |
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Hi Geoffrey. Please let me know if you need any more info. kind regards, musician@Junctionbox: |
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Hi Christiaan, I agree, that looks like a successful compilation. I'm not sure why you say "no success"? Have you run the following two commands to install the module? Regards, |
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Oops.. I think where I may have gone astray?! Greetings again fro France, |
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Yes, the driver initialisation messages ("Focusrite ... Mixer Driver enabled" etc.) will only show when you attach a supported device. You may also need to reboot if the snd-usb-audio module had already been loaded. |
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Yes! Looking great. Focusrite 18i8 on Ubuntu 20.04.6, kernel 5.15.0-117-generic. Thanks a lot Geoffrey. B.t.w. As a volunteer I'm supporting a Dutch ensemble specialized in contemporary music. Should you be interested, please have a look at a registration of one of "our" recent concerts, where four church-organs jointly played a new composition written for a special occasion, and where those organs where interlinked via Internet using a high-speed mesh-network. |
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Looking good! And thank you for sharing! I'm listening to it now. |
Good day Geoffrey.
When building the backported version for kernel 5.15 I run into a problem. For most folks here probably something trivial, but not for me, sorry.
Kernel: 5.15.0-117-generic
OS: Ubuntu 20.04.6 LTS
When following the instructions I enter the command "make -j4 -C$KSRCDIR M=$ (pwd)" building starts but problems arise when compiling "mixer_scarlett2.c", see below. From what I understand, it could be a compiler-version related issue.
I therefore checked the compiler in use:
musician@Testbox1:
/Downloads/snd-usb-audio-kmod-5.15-v1.2$ gcc --version20.04.2) 9.4.0gcc (Ubuntu 9.4.0-1ubuntu1
Copyright (C) 2019 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Any help appreciated! and thanks for a great job well done!
Christiaan
/home/musician/Downloads/snd-usb-audio-kmod-5.15-v1.2/mixer_scarlett2.c: In function ‘scarlett2_update_autogain’:
/home/musician/Downloads/snd-usb-audio-kmod-5.15-v1.2/mixer_scarlett2.c:3411:11: error: redeclaration of ‘i’ with no linkage
3411 | for (int i = 0; i < SCARLETT2_AG_TARGET_COUNT; i++)
| ^
/home/musician/Downloads/snd-usb-audio-kmod-5.15-v1.2/mixer_scarlett2.c:3369:11: note: previous declaration of ‘i’ was here
3369 | int err, i;
| ^
/home/musician/Downloads/snd-usb-audio-kmod-5.15-v1.2/mixer_scarlett2.c:3411:2: error: ‘for’ loop initial declarations are only allowed in C99 or C11 mode
3411 | for (int i = 0; i < SCARLETT2_AG_TARGET_COUNT; i++)
| ^~~
/home/musician/Downloads/snd-usb-audio-kmod-5.15-v1.2/mixer_scarlett2.c:3411:2: note: use option ‘-std=c99’, ‘-std=gnu99’, ‘-std=c11’ or ‘-std=gnu11’ to compile your code
/home/musician/Downloads/snd-usb-audio-kmod-5.15-v1.2/mixer_scarlett2.c:3422:11: error: redefinition of ‘i’
3422 | for (int i = 0; i < SCARLETT2_AG_TARGET_COUNT; i++)
| ^
/home/musician/Downloads/snd-usb-audio-kmod-5.15-v1.2/mixer_scarlett2.c:3411:11: note: previous definition of ‘i’ was here
3411 | for (int i = 0; i < SCARLETT2_AG_TARGET_COUNT; i++)
| ^
/home/musician/Downloads/snd-usb-audio-kmod-5.15-v1.2/mixer_scarlett2.c:3422:2: error: ‘for’ loop initial declarations are only allowed in C99 or C11 mode
3422 | for (int i = 0; i < SCARLETT2_AG_TARGET_COUNT; i++)
| ^~~
CC [M] /home/musician/Downloads/snd-usb-audio-kmod-5.15-v1.2/mixer_us16x08.o
/home/musician/Downloads/snd-usb-audio-kmod-5.15-v1.2/mixer_scarlett2.c: In function ‘scarlett2_compressor_ctl_put’:
/home/musician/Downloads/snd-usb-audio-kmod-5.15-v1.2/mixer_scarlett2.c:5408:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
5408 | const struct compressor_param *param = &compressor_params[param_index];
| ^~~~~
make[1]: *** [scripts/Makefile.build:297: /home/musician/Downloads/snd-usb-audio-kmod-5.15-v1.2/mixer_scarlett2.o] Error 1
make[1]: *** Waiting for unfinished jobs....
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