Function linuxHasAlsaCards

src/services/voice.ts:130–139

()

let linuxAlsaCardsMemo: Promise<boolean> | null = null

function linuxHasAlsaCards(): Promise<boolean> {
  linuxAlsaCardsMemo ??= readFile('/proc/asound/cards', 'utf8').then(
    cards => {
      const c = cards.trim()
      return c !== '' && !c.includes('no soundcards')
    },
    () => false,
  )
  return linuxAlsaCardsMemo
}

export function _resetAlsaCardsForTesting(): void {
  linuxAlsaCardsMemo = null