out

来自「一个在linux+MiniGui的彩票销售终端程序,基于framebuffer的」· 代码 · 共 35 行

send_modem(): return value
* success to return 0, fail to return with:
 * -1:open port error,
 * -2:write port error,
 * -3:open file failure,
 * -4:initial modem error,
 * -5:error dial command,
 * -6:enter data mode fail,
 * -7:read file error,
 * -8:communicate timeout,
 * -9:set SIGALARM error,
 * 1: no dialtone,
 * 2: busy,
 * 3: no carrier,
 * 4: no answer,
 * 5: not read finish file,
 * 6: sendfile is null.
 * 7: modem is in voice status.


recv_modem():return value
success to return 0, fail to return with:
* success to return 0, fail to return with:
 * -1:open port error,
 * -2:write port error,
 * -3:creat file failure,
 * -4:initial modem error,
 * -5:have no request dial,
 * -6:Can't connect remote modem,
 * -7:read port error,
 * -8:communicate timeout,
 * -9:write file error,
 * 2:interrupt receive process,
 * 3:set SIGALRM error.