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1.1 ! root 1: ddooppeenn() -- Driver-Access Routines ! 2: ! 3: vvooiidd ! 4: ddooppeenn(_d_e_v, _m_o_d_e, _f_l_a_g_s) ! 5: ddeevv_tt _d_e_v; ! 6: ! 7: ddooppeenn() calls the function pointed to by field cc_ooppeenn in the driver's CCOONN ! 8: structure. This function opens the device. ! 9: ! 10: _d_e_v is the device being opened. _m_o_d_e gives the mode in which it is being ! 11: opened; valid _m_o_d_e_s include IIPPRR(read), IIPPWW(write), or IIPPRR | IIPPWW. Valid ! 12: _f_l_a_g_s are DDFFBBLLKK or DDFFCCHHRR. If the open fails, uu.uu_eerrrroorr is set. ! 13: ! 14: _S_e_e _A_l_s_o ! 15: ddrriivveerr-aacccceessss rroouuttiinneess
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