Maksim Totmin
4c34f0bedc
Streams H.264 to the Galahad II LCD via USB (gousb) with: - ffmpeg CLI transcoding (no fragile FFmpeg C-ABI bindings) - pure-Go Annex-B access-unit splitting - framerate pacing with graceful shutdown and USB reconnect - TOML config, cobra CLI, structured slog logging, unit tests
56 lines
1.2 KiB
Go
56 lines
1.2 KiB
Go
package cli
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import (
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"fmt"
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"sort"
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"text/tabwriter"
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"github.com/spf13/cobra"
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"galahad2lcd/internal/device"
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)
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func newListCmd() *cobra.Command {
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return &cobra.Command{
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Use: "list",
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Short: "List USB devices visible to the driver",
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Args: cobra.NoArgs,
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RunE: func(cmd *cobra.Command, _ []string) error {
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ctx, stop := newSignalContext()
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defer stop()
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infos, err := device.ListDevices(ctx)
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if err != nil {
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return err
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}
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if len(infos) == 0 {
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fmt.Fprintln(cmd.OutOrStdout(), "no USB devices found (are permissions configured?)")
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return nil
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}
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sort.Slice(infos, func(i, j int) bool {
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return infos[i].Bus < infos[j].Bus ||
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(infos[i].Bus == infos[j].Bus && infos[i].Address < infos[j].Address)
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})
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w := tabwriter.NewWriter(cmd.OutOrStdout(), 0, 4, 2, ' ', 0)
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fmt.Fprintln(w, "BUS\tADDR\tVID:PID\tPRODUCT\t")
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for _, info := range infos {
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product := info.Product
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if product == "" {
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product = "-"
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}
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marker := " "
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if info.IsLCD {
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marker = "*"
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}
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fmt.Fprintf(w, "%s%d\t%d\t%04x:%04x\t%s\t\n",
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marker, info.Bus, info.Address, info.VendorID, info.ProductID, product)
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}
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fmt.Fprintln(w, "* Lian Li Galahad II LCD (0416:7395)")
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return w.Flush()
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},
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}
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}
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