Code cleaned, CI +go1.21, -go1.18

.editorconfig

@@ -17,6 +17,6 @@ ij_go_move_all_stdlib_imports_in_one_group = true
 ij_go_local_group_mode = project
 ij_go_GROUP_CURRENT_PROJECT_IMPORTS = true
 
-[*.{yml, yaml}]
+[*.{yml,yaml}]
 indent_style = space
 indent_size = 2

.github/workflows/golang.yml

@@ -18,26 +18,18 @@ jobs:
           - 'macos-latest'
           - 'windows-latest'
         go:
-          - '1.18'
           - '1.19'
           - '1.20'
+          - '1.21'
 
     runs-on: ${{ matrix.os }}
 
     steps:
-      - name: Checkout
-        uses: actions/checkout@v2
-
-      - name: Setup Go
-        uses: actions/setup-go@v2
+      - uses: actions/checkout@v4
+      - uses: actions/setup-go@v4
         with:
           go-version: ${{ matrix.go }}
-
-      - name: Get dependencies
-        run: go mod download
-
-      - name: Test
-        run: go test -v -race ./...
+      - run: go test -v -race ./...
 
   # Lint
   #  lint:
@@ -69,47 +61,39 @@ jobs:
       matrix:
         # `go tool dist list` with many exclusions
         include:
-          - { os: ubuntu-latest, goos: linux, goarch: amd64 }
-          - { os: ubuntu-latest, goos: linux, goarch: arm64 }
-          - { os: ubuntu-latest, goos: linux, goarch: ppc64le }
+          - { os: ubuntu-latest, goos: linux, goarch: amd64, cgo: '0' }
+          - { os: ubuntu-latest, goos: linux, goarch: arm64, cgo: '0' }
+          - { os: ubuntu-latest, goos: linux, goarch: ppc64le, cgo: '0' }
 
-          - { os: ubuntu-latest, goos: android, goarch: amd64 }
-          - { os: ubuntu-latest, goos: android, goarch: arm64 }
+          - { os: ubuntu-latest, goos: android, goarch: amd64, cgo: '0' }
+          - { os: ubuntu-latest, goos: android, goarch: arm64, cgo: '0' }
 
-          - { os: ubuntu-latest, goos: freebsd, goarch: amd64 }
-          - { os: ubuntu-latest, goos: freebsd, goarch: arm64 }
+          - { os: ubuntu-latest, goos: freebsd, goarch: amd64, cgo: '0' }
+          - { os: ubuntu-latest, goos: freebsd, goarch: arm64, cgo: '0' }
 
-          - { os: ubuntu-latest, goos: openbsd, goarch: amd64 }
-          - { os: ubuntu-latest, goos: openbsd, goarch: arm64 }
+          - { os: ubuntu-latest, goos: openbsd, goarch: amd64, cgo: '0' }
+          - { os: ubuntu-latest, goos: openbsd, goarch: arm64, cgo: '0' }
 
           # MacOS IOKit required, so no cross-build available
           # - { os: ubuntu-latest, goos: darwin, goarch: amd64 }
           # - { os: ubuntu-latest, goos: darwin, goarch: arm64 }
 
-          - { os: macos-latest, goos: darwin, goarch: amd64 }
-          # Currently `macos-latest` is equeal to `macos-11` which does not support arm64
-          # - { os: macos-latest, goos: darwin, goarch: arm64 }
+          - { os: macos-latest, goos: darwin, goarch: amd64, cgo: '1' }
+          - { os: macos-latest, goos: darwin, goarch: arm64, cgo: '1' }
 
-          - { os: windows-latest, goos: windows, goarch: amd64 }
-          - { os: windows-latest, goos: windows, goarch: arm64 }
+          - { os: windows-latest, goos: windows, goarch: amd64, cgo: '0' }
+          - { os: windows-latest, goos: windows, goarch: arm64, cgo: '0' }
 
     runs-on: ${{ matrix.os }}
 
     env:
       GOOS: ${{ matrix.goos }}
       GOARCH: ${{ matrix.goarch }}
+      CGO_ENABLED: ${{ matrix.cgo }}
 
     steps:
-      - name: Checkout
-        uses: actions/checkout@v3
-
-      - name: Setup Go
-        uses: actions/setup-go@v3
+      - uses: actions/checkout@v4
+      - uses: actions/setup-go@v4
         with:
-          go-version: '1.20'
-
-      - name: Get dependencies
-        run: go mod download
-
-      - name: Build
-        run: go build
+          go-version: '1.21'
+      - run: uname -a && go build

.golangci.yml

@@ -39,29 +39,29 @@ linters:
   # Please keep in order
   disable:
     - deadcode         # The linter 'deadcode' is deprecated (since v1.49.0) due to: The owner seems to have abandoned the linter. Replaced by unused.
-    - exhaustruct      # Unecessary annoying!
-    - exhaustivestruct # Unecessary annoying!
+    - exhaustruct      # Unnecessary annoying!
+    - exhaustivestruct # Unnecessary annoying!
     - goerr113         # Useful but not in this package!
-    - gochecknoglobals # Too paranoic!
-    - goimports        # Latest gci with sections is good enougth
+    - gochecknoglobals # Too paranoid!
+    - goimports        # Latest gci with sections is good enough
     - golint           # The linter 'golint' is deprecated (since v1.41.0) due to: The repository of the linter has been archived by the owner.  Replaced by revive.
     - ifshort          # The linter 'ifshort' is deprecated (since v1.48.0) due to: The repository of the linter has been deprecated by the owner.
     - interfacer       # The linter 'interfacer' is deprecated (since v1.38.0) due to: The repository of the linter has been archived by the owner.
-    - ireturn          # Yes! Some functions retures interfaces.
+    - ireturn          # Yes! Some functions returns interfaces.
     - maligned         # The linter 'maligned' is deprecated (since v1.38.0) due to: The repository of the linter has been archived by the owner.  Replaced by govet 'fieldalignment'.
     - nlreturn         # Personally I hate mandatory blank lines before returns.
     - nosnakecase      # The linter 'nosnakecase' is deprecated (since v1.48.1) due to: The repository of the linter has been deprecated by the owner. Replaced by revive(var-naming).
     - paralleltest
     - rowserrcheck     # rowserrcheck is disabled because of generics. You can track the evolution of the generics support by following the https://github.com/golangci/golangci-lint/issues/2649.
     - scopelint        # The linter 'scopelint' is deprecated (since v1.39.0) due to: The repository of the linter has been deprecated by the owner.  Replaced by exportloopref.
     - structcheck      # structcheck is disabled because of generics. You can track the evolution of the generics support by following the https://github.com/golangci/golangci-lint/issues/2649.
-    - testableexamples # New linetr, project is not adapted for this linter yet.
+    - testableexamples # New linter, project is not adapted for this linter yet.
     - varcheck         # The linter 'varcheck' is deprecated (since v1.49.0) due to: The owner seems to have abandoned the linter. Replaced by unused.
     - varnamelen       # Annoying!
     - unparam          # Panics with GOOS=linux
     - wastedassign     # wastedassign is disabled because of generics. You can track the evolution of the generics support by following the https://github.com/golangci/golangci-lint/issues/2649.
     - wrapcheck        # Not needed!
-    - wsl              # Unecessary annoying!
+    - wsl              # Unnecessary annoying!
 
 issues:
   exclude-rules:

CHANGELOG.md

@@ -1,55 +1,68 @@
 # Changelog
 
+## 2.7.0
+
+- CI: Supported go versions now are `go1.19`, `go1.20`, `go1.21`
+- Applied `go mod tidy -go 1.19`
+- Package `github.com/albenik/go-serial/enumerator` was removed as of broken build with `go1.21`,
+  please use `github.com/bugst/go-serial/enumerator` — the original well maintained source of the removed package.
+- Minor code fixes (typo, linter recommendations, etc...)
+- Dependencies updated
+
+## 2.6.1
+
+- BUGFIX: Linux, "bad address" while setting DTR (#41)
+
 ## 2.6.0
 
-* `go mod tudy -go 1.18`.
-* CI Tests: `go1.18`, `go1.19`, `go1.20`.
-* CI Cross-build: cleanup.
-* `golangci-lint` added & code cleaned.
-* obsolete `darwin/386` code removed.
+- `go mod tudy -go 1.18`.
+- CI Tests: `go1.18`, `go1.19`, `go1.20`.
+- CI Cross-build: cleanup.
+- `golangci-lint` added & code cleaned.
+- obsolete `darwin/386` code removed.
 
 ## 2.5.1
 
-* `ppc64le` build supported [#33](https://github.com/albenik/go-serial/pull/33).
+- `ppc64le` build supported [#33](https://github.com/albenik/go-serial/pull/33).
 
 ## 2.5.0
 
-* `GOOS=android` build supported [#29](https://github.com/albenik/go-serial/issues/29).
-* Unused second argument for unix build in method `Port.SetTimeoutEx()` was made optional in backward compatibility
+- `GOOS=android` build supported [#29](https://github.com/albenik/go-serial/issues/29).
+- Unused second argument for unix build in method `Port.SetTimeoutEx()` was made optional in backward compatibility
   manner.
-* `go 1.13` errors supported: `PortError.Unwrap()` method added, `PortError.Cause()` method marked as deprecated.
+- `go 1.13` errors supported: `PortError.Unwrap()` method added, `PortError.Cause()` method marked as deprecated.
 
 ## 2.4.0
 
-* `GOOS=darwin GOARCH=arm64` build supported [#25](https://github.com/albenik/go-serial/pull/25).
-* Fixed regression in `GOOS=darwin` build was introduced in `v2.3.0`
+- `GOOS=darwin GOARCH=arm64` build supported [#25](https://github.com/albenik/go-serial/pull/25).
+- Fixed regression in `GOOS=darwin` build was introduced in `v2.3.0`
 
 ## 2.3.0
 
-* Some fixes backported from https://github.com/bugst/go-serial [#22](https://github.com/albenik/go-serial/pull/22).
+- Some fixes backported from https://github.com/bugst/go-serial [#22](https://github.com/albenik/go-serial/pull/22).
 
 ## 2.2.0
 
-* `PortError.Cause()` method added
+- `PortError.Cause()` method added
 
 ## 2.1.0
 
-* MacOS extended baudrate support added [#14](https://github.com/albenik/go-serial/pull/14).
-* MacOS wrong generated syscall fixed [#15](https://github.com/albenik/go-serial/issues/15).
+- MacOS extended baudrate support added [#14](https://github.com/albenik/go-serial/pull/14).
+- MacOS wrong generated syscall fixed [#15](https://github.com/albenik/go-serial/issues/15).
 
 ## 2.0.0
 
-* New Go Module import path `github.com/albenik/go-serial/v2`
-* `serial.Port` interface discarded in favor of `serial.Port` structure (similar to `os.File`)
-* `serial.Mode` discared and replaced with `serial.Option`
-* `serial.Open()` method changed to use `serila.Option`)
-* `port.SetMode(mode *Mode)` replaced with `port.Reconfigure(opts ...Option)`
-* `Disable HUPCL by default` [#7](https://github.com/albenik/go-serial/pull/7)
-* `WithHUPCL(bool)` option introduced
-* Minor bugfix & refactoring
+- New Go Module import path `github.com/albenik/go-serial/v2`
+- `serial.Port` interface discarded in favor of `serial.Port` structure (similar to `os.File`)
+- `serial.Mode` discarded and replaced with `serial.Option`
+- `serial.Open()` method changed to use `serila.Option`)
+- `port.SetMode(mode *Mode)` replaced with `port.Reconfigure(opts ...Option)`
+- `Disable HUPCL by default` [#7](https://github.com/albenik/go-serial/pull/7)
+- `WithHUPCL(bool)` option introduced
+- Minor bugfix & refactoring
 
 ## 1.x.x
 
-* Forked from https://github.com/bugst/go-serial
-* Minor but incompatible interface & logic changes implemented
-* Import path altered
+- Forked from https://github.com/bugst/go-serial
+- Minor but incompatible interface & logic changes implemented
+- Import path altered