Description of problem:
using epson printer
SELinux is preventing ecblp from 'open' accesses on the fifo_file /run/ecblp0.

*****  Plugin catchall (100. confidence) suggests   **************************

If you believe that ecblp should be allowed open access on the ecblp0 fifo_file by default.
Then you should report this as a bug.
You can generate a local policy module to allow this access.
Do
allow this access for now by executing:
# ausearch -c 'ecblp' --raw | audit2allow -M my-ecblp
# semodule -X 300 -i my-ecblp.pp

Additional Information:
Source Context                system_u:system_r:cupsd_t:s0-s0:c0.c1023
Target Context                system_u:object_r:var_run_t:s0
Target Objects                /run/ecblp0 [ fifo_file ]
Source                        ecblp
Source Path                   ecblp
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
SELinux Policy RPM            selinux-policy-targeted-35.15-1.fc35.noarch
Local Policy RPM              selinux-policy-targeted-35.15-1.fc35.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 5.16.12-200.fc35.x86_64 #1 SMP
                              PREEMPT Wed Mar 2 19:06:17 UTC 2022 x86_64 x86_64
Alert Count                   9
First Seen                    2022-03-07 14:22:05 GMT
Last Seen                     2022-03-07 14:25:05 GMT
Local ID                      cf55ca76-c166-41c1-8a26-8970efe4ff38

Raw Audit Messages
type=AVC msg=audit(1646663105.488:367): avc:  denied  { open } for  pid=7963 comm="ecblp" path="/run/ecblp0" dev="tmpfs" ino=1898 scontext=system_u:system_r:cupsd_t:s0-s0:c0.c1023 tcontext=system_u:object_r:var_run_t:s0 tclass=fifo_file permissive=0


Hash: ecblp,cupsd_t,var_run_t,fifo_file,open

Version-Release number of selected component:
selinux-policy-targeted-35.15-1.fc35.noarch

Additional info:
component:      selinux-policy
reporter:       libreport-2.15.2
hashmarkername: setroubleshoot
kernel:         5.16.12-200.fc35.x86_64
type:           libreport

Potential duplicate: bug 1357908