diff options
| -rw-r--r-- | miscutils/setserial.c | 91 |
1 files changed, 46 insertions, 45 deletions
diff --git a/miscutils/setserial.c b/miscutils/setserial.c index 28a1bef..a4d59f8 100644 --- a/miscutils/setserial.c +++ b/miscutils/setserial.c @@ -210,35 +210,35 @@ struct serial_struct { #endif //usage:#define setserial_trivial_usage -//usage: "[-gabGvzV] DEVICE [PARAMETER [ARG]]..." +//usage: "[-abGvz] { DEVICE [PARAMETER [ARG]]... | -g DEVICE... }" //usage:#define setserial_full_usage "\n\n" -//usage: "Request or set Linux serial port information\n" -//usage: "\n" -//usage: " -g Interpret parameters as list of devices for reporting\n" -//usage: " -a Print all available information\n" -//usage: " -b Print summary information\n" -//usage: " -G Print in form which can be fed back\n" -//usage: " to setserial as command line parameters\n" -//usage: " -z Zero out serial flags before setting\n" -//usage: " -v Verbose\n" -//usage: "\n" -//usage: "Parameters: (* = takes an argument, ^ = can be turned off by preceding ^)\n" -//usage: " *port, *irq, *divisor, *uart, *baud_base, *close_delay, *closing_wait,\n" -//usage: " ^fourport, ^auto_irq, ^skip_test, ^sak, ^session_lockout, ^pgrp_lockout,\n" -//usage: " ^callout_nohup, ^split_termios, ^hup_notify, ^low_latency, autoconfig,\n" -//usage: " spd_normal, spd_hi, spd_vhi, spd_shi, spd_warp, spd_cust\n" -//usage: "\n" -//usage: "UART types:\n" -//usage: " unknown, 8250, 16450, 16550, 16550A, Cirrus, 16650, 16650V2, 16750,\n" -//usage: " 16950, 16954, 16654, 16850, RSA, NS16550A, XSCALE, RM9000, OCTEON, AR7,\n" -//usage: " U6_16550A" - +//usage: "Print or set serial port parameters" +//usage: "\n" +//usage: "\n"" -a Print all" +//usage: "\n"" -b Print summary" +//usage: "\n"" -G Print as setserial PARAMETERs" +//usage: "\n"" -v Verbose" +//usage: "\n"" -z Zero out serial flags before setting" +//usage: "\n"" -g All args are device names" +//usage: "\n" +//usage: "\n""PARAMETERs: (* = takes ARG, ^ = can be turned off by preceding ^)" +//usage: "\n"" *port, *irq, *divisor, *uart, *baud_base, *close_delay, *closing_wait," +//usage: "\n"" ^fourport, ^auto_irq, ^skip_test, ^sak, ^session_lockout, ^pgrp_lockout," +//usage: "\n"" ^callout_nohup, ^split_termios, ^hup_notify, ^low_latency, autoconfig," +//usage: "\n"" spd_normal, spd_hi, spd_vhi, spd_shi, spd_warp, spd_cust" +//usage: "\n""ARG for uart:" +//usage: "\n"" unknown, 8250, 16450, 16550, 16550A, Cirrus, 16650, 16650V2, 16750," +//usage: "\n"" 16950, 16954, 16654, 16850, RSA, NS16550A, XSCALE, RM9000, OCTEON, AR7," +//usage: "\n"" U6_16550A" + +// option string is "bGavzgq". "q" is accepted but ignored. #define OPT_PRINT_SUMMARY (1 << 0) #define OPT_PRINT_FEDBACK (1 << 1) #define OPT_PRINT_ALL (1 << 2) #define OPT_VERBOSE (1 << 3) #define OPT_ZERO (1 << 4) -#define OPT_GET (1 << 5) +#define OPT_LIST_OF_DEVS (1 << 5) +/*#define OPT_QUIET (1 << 6)*/ #define OPT_MODE_MASK \ (OPT_PRINT_ALL | OPT_PRINT_SUMMARY | OPT_PRINT_FEDBACK) @@ -362,7 +362,7 @@ static bool cmd_is_flag(int cmd) return (cmd >= CMD_FLAG_FIRST && cmd <= CMD_FLAG_LAST); } -static bool cmd_need_arg(int cmd) +static bool cmd_needs_arg(int cmd) { return (cmd >= CMD_PORT && cmd <= CMD_WAIT); } @@ -652,11 +652,9 @@ static int find_cmd(const char *cmd) static void serial_set(char **arg, int opts) { struct serial_struct serinfo; - int cmd; - const char *word; int fd; - fd = serial_open(*arg++, /*quiet:*/ false); + fd = serial_open(*arg, /*quiet:*/ false); if (fd < 0) exit(201); @@ -665,17 +663,20 @@ static void serial_set(char **arg, int opts) if (opts & OPT_ZERO) serinfo.flags = 0; - while (*arg) { + while (*++arg) { + const char *word; int invert; + int cmd; - word = *arg++; - invert = (*word == '^'); + word = *arg; + invert = (word[0] == '^'); word += invert; cmd = find_cmd(word); - if (*arg == NULL && cmd_need_arg(cmd)) - bb_error_msg_and_die(bb_msg_requires_arg, word); + if (cmd_needs_arg(cmd)) + if (*++arg == NULL) + bb_error_msg_and_die(bb_msg_requires_arg, word); if (invert && !cmd_is_flag(cmd)) bb_error_msg_and_die("can't invert %s", word); @@ -705,25 +706,25 @@ static void serial_set(char **arg, int opts) serinfo.flags |= setbits[cmd]; break; case CMD_PORT: - serinfo.port = get_numeric(*arg++); + serinfo.port = get_numeric(*arg); break; case CMD_IRQ: - serinfo.irq = get_numeric(*arg++); + serinfo.irq = get_numeric(*arg); break; case CMD_DIVISOR: - serinfo.custom_divisor = get_numeric(*arg++); + serinfo.custom_divisor = get_numeric(*arg); break; case CMD_UART: - serinfo.type = get_uart(*arg++); + serinfo.type = get_uart(*arg); break; case CMD_BASE: - serinfo.baud_base = get_numeric(*arg++); + serinfo.baud_base = get_numeric(*arg); break; case CMD_DELAY: - serinfo.close_delay = get_numeric(*arg++); + serinfo.close_delay = get_numeric(*arg); break; case CMD_WAIT: - serinfo.closing_wait = get_wait(*arg++); + serinfo.closing_wait = get_wait(*arg); break; case CMD_AUTOCONFIG: serial_ctl(fd, CTL_SET | CTL_CONFIG | CTL_GET, &serinfo); @@ -742,21 +743,21 @@ int setserial_main(int argc UNUSED_PARAM, char **argv) int opts; opt_complementary = "-1:b-aG:G-ab:a-bG"; - opts = getopt32(argv, "bGavzg"); + opts = getopt32(argv, "bGavzgq"); argv += optind; if (!argv[1]) /* one arg only? */ - opts |= OPT_GET; + opts |= OPT_LIST_OF_DEVS; - if (!(opts & OPT_GET)) { + if (!(opts & OPT_LIST_OF_DEVS)) { serial_set(argv, opts); argv[1] = NULL; } - if (opts & (OPT_VERBOSE | OPT_GET)) { + if (opts & (OPT_VERBOSE | OPT_LIST_OF_DEVS)) { do { - serial_get(*argv++, opts & OPT_MODE_MASK); - } while (*argv); + serial_get(*argv, opts & OPT_MODE_MASK); + } while (*++argv); } return EXIT_SUCCESS; |