Embedded FreeBSD Cookbook phần 7 pptx

... calling function. 136 Embedded FreeBSD Cookbook } else { printf(“illegal state\n”); return; } if (dio_set_int(s) != 0) { printf(“set int failed\n”); } } Listing 7- 7 The int_handler ... == 0) { polarity = activelo; } 142 Embedded FreeBSD Cookbook /* since quit handles cleanup and exit we ’ll never get here */ exit(0); } Listing 7- 14 The command parsing l...

Ngày tải lên: 08/08/2014, 01:21

... SetLineNative, and GetDirectionNative. 142 Embedded FreeBSD Cookbook /* since quit handles cleanup and exit we ’ll never get here */ exit(0); } Listing 7- 14 The command parsing loop consists ... syntax. 138 Embedded FreeBSD Cookbook else { printf(“invalid polarity\n”); return; } if (dio_set_polarity(polarity) != 0) { printf(“error writing polarity\n”); } } Lis...

Ngày tải lên: 07/08/2014, 23:20

... The 67 Function 67 The 68 Function 68 The 69 Function 69 The 69 Function 69 Register Shadowing 71 The 73 Function 73 Summary 76 5 Midlevel Interface Library 77 Overview 77 Shared ... The 57 Structure 57 The 57 Macro 57 The 58 Structure 58 The DIO24 Device Driver 59 6 Embedded FreeBSD Cookbook networking pr otocols. The features and benefits of FreeBS...

Ngày tải lên: 08/08/2014, 01:21

... The 67 Function 67 The 68 Function 68 The 69 Function 69 The 69 Function 69 Register Shadowing 71 The 73 Function 73 Summary 76 5 Midlevel Interface Library 77 Overview 77 Shared ... The 57 Structure 57 The 57 Macro 57 The 58 Structure 58 The DIO24 Device Driver 59 6 Embedded FreeBSD Cookbook networking pr otocols. The features and benefits of FreeBS...

Ngày tải lên: 07/08/2014, 23:20

... pushed onto the program stack. 20 Embedded FreeBSD Cookbook State A pr ocess is in one of five states at any time. The process state is used internally by the FreeBSD kernel to organize processes. ... fork()) > 0) { printf(“%d: waiting for the child\n”, pid); wait(&status); 14 Embedded FreeBSD Cookbook Ever y process has a parent process. When a process is create...

Ngày tải lên: 07/08/2014, 23:20

... 8 bytes of data contained 48 Embedded FreeBSD Cookbook > write c023f4c2 8 >> cookbook > > read c023f4c2 10 c023f4c2: 63 6f 6f 6b 62 6f 6f 6b cookbook c023f4ca: 41 53 45 ... string. 58 Embedded FreeBSD Cookbook Fr eeBSD provides support for dynamic loading and unloading of drivers. The autoconfiguration code is the method to communicate with the FreeBS...

Ngày tải lên: 07/08/2014, 23:20

... operator 116, 4 Oct 24 17: 07 ad0e crw-r——- 2 root operator 116, 5 Oct 24 17: 07 ad0f crw-r——- 2 root operator 116, 6 Oct 24 17: 07 ad0g crw-r——- 2 root operator 116, 7 Oct 24 17: 07 ad0h The device ... operator 116, 0 Oct 24 17: 07 ad0a crw-r——- 2 root operator 116, 1 Oct 24 17: 07 ad0b crw-r——- 2 root operator 116, 2 Oct 24 17: 07 ad0c crw-r——- 2 root operator 116, 3 Oct 24...

Ngày tải lên: 07/08/2014, 23:20

... 100 Embedded FreeBSD Cookbook case line12: case line13: case line14: case line15: value = (((direction & portb_in) != 0) ? linein : lineout); break; case line16: case line 17: case ... line5 = 5, line6 = 6, line7 = 7, line8 = 8, line9 = 9, line10 = 10, line11 = 11, line12 = 12, line13 = 13, line14 = 14, line15 = 15, line16 = 16, line 17 = 17, line18 = 18,...

Ngày tải lên: 07/08/2014, 23:20

... (dio_set_line(line, state) != 0) { printf(“write line failed\n”); } } Listing 7- 5 122 Embedded FreeBSD Cookbook /* ** fork a child process to handle the request, then go ** back and ... external variable errno is set to EWOULDBLOCK. 126 Embedded FreeBSD Cookbook # This is ssh server systemwide configuration file. # # $FreeBSD: src/crypto/openssh/sshd_config,v 1.4...

Ngày tải lên: 07/08/2014, 23:20

... In addition, the page directive has many methods for controlling page attributes. 178 Embedded FreeBSD Cookbook # # An exhaustive list of options and more detailed explanations # of the ... multiple operating systems. Each partition may have a different operat- ing system loaded. 172 Embedded FreeBSD Cookbook device sym # NCR/Symbios Logic (newer chipsets) options SYM_S...

Ngày tải lên: 07/08/2014, 23:20