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我正在尝试busctl call一种将字节数组作为参数（签名ay）的方法。我该怎么做呢？

这是我迄今为止尝试过的：

# busctl call ${SERVICE_IFACE} ${THE_OBJECT} ${SERVICE_IFACE} ${METHOD} ay 0x00 0x00 0x01 0x00 0xaf
Too many parameters for signature.
# busctl call ${SERVICE_IFACE} ${THE_OBJECT} ${SERVICE_IFACE} ${METHOD} yyyyy 0x00 0x00 0x01 0x00 0xaf
Call failed: Invalid arguments 'yyyyy' to call xyz.openbmc_project.Control.Haven.SendHostCommand(), expecting 'ay'.
# busctl call ${SERVICE_IFACE} ${THE_OBJECT} ${SERVICE_IFACE} ${METHOD} a5y 0x00 0x00 0x01 0x00 0xaf
Invalid array signature: Invalid argument
# busctl call ${SERVICE_IFACE} ${THE_OBJECT} ${SERVICE_IFACE} ${METHOD} ay '0x00 0x00 0x01 0x00 0xaf'
Failed to parse '0x00 0x00 0x01 0x00 0xaf' number of array entries: Invalid argument

那么，它想要什么？

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1 回答 1

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我相信您需要将数组的长度放在值之前。所以在你的例子中，这将是：

busctl call ${SERVICE_IFACE} ${THE_OBJECT} ${SERVICE_IFACE} ${METHOD} ay 5 0x00 0x00 0x01 0x00 0xaf
于 2021-07-08T19:57:11.477 回答