This page was last modified 11:45, 19 February 2008.
RComm::Open()返回KErrPermissionDenied
From Forum Nokia Wiki
- 标题：RComm::Open()返回KErrPermissionDenied
TSS000472
- 开发伙伴平台：
S60 3rd Edition, S60 3rd Edition FP1
- 详细描述
当我们试图打开一个从CSD数据呼叫中租借的dataport时，RComm::Open()就会返回KErrPermissionDenied错误。文档中指明如果要使用这个方法则需要LocalServices能力，但事实上这样也无济于事。
SDK文档中所描述的RComm::Open()方法并不完整，实际所需的能力需要根据使用中的通信模式（*.CSY）来定夺。在特定的使用环境下，DATAPORT.CSY模式被使用时，则其呼叫处理需要如下能力：NetworkServices, NetworkControl和CommDD.
对其他CSY模式来说，安全设置则比较松懈：
- BTCOMM.CSY 需要 LocalServices - IRCOMM.CSY 需要 LocalServices - ECUART.CSY 不需要任何能力
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