1usbsprl(7D) Devices usbsprl(7D)
2
6 usbsprl - Prolific PL2303 USB to serial converter driver
7
9 #include <fcntl.h>
10 #include <sys/termio.h>
13 usbsprl@unit
16
19 The usbsprl driver is a loadable STREAMS and USBA (Solaris USB archi‐
20 tecture) compliant client driver that provides basic asynchronous com‐
21 munication support for Prolific PL2303 USB-to-serial converters. Sup‐
22 ported devices include PL2303H, PL2303HX and PL2303X. Serial device
23 streams are built with appropriate modules that are pushed atop the
24 usbsprl driver by the autopush(1M) facility.
25 The usbsprl module supports the termio(7I) device control functions
28 specified by flags in the c_cflag word of the termios structure, and by
29 the IGNBRK, IGNPAR, PARMRK and INPCK flags in the c_iflag word of the
30 termios structure. All other termio(7I) functions must be performed by
31 STREAMS modules pushed atop the driver. When a device is opened, the
32 ldterm(7M) and ttcompat(7M) STREAMS modules are automatically pushed
33 on top of the stream, providing the standard termio(7I) interface.
34 Use device logical names /dev/term/[0-9]* to access the serial
37 ports. These names are typically used to provide a logical access point
38 for a dial-in line that is used with a modem.
39 A special feature (controlled by the minor device number) is available
42 that enables a single tty line to be connected to a modem and used for
43 incoming and outgoing calls. By accessing through device logical name
44 /dev/cua/[0-9]*, you can open a port without the carrier detect signal
45 being asserted, either through hardware or an equivalent software mech‐
46 anism. These devices are commonly known as 'dial-out' lines.
47
49 A dial-in line can be opened only if the corresponding dial-out line is
50 closed. A blocking /dev/term open waits until the /dev/cua line is
51 closed (which drops Data Terminal Ready, after which Carrier Detect
52 usually drops as well) and carrier is detected again. A non-blocking
53 /dev/term open returns an error if the /dev/cua is open.
54 If the /dev/term line is opened successfully (usually only when car‐
57 rier is recognized on the modem), the corresponding /dev/cua line can‐
58 not be opened. This allows a modem and port to be used for dial-in (by
59 enabling the line for login in /etc/inittab) or dial-out (by tip(1), or
60 uucp(1C)) when no one is logged in on the line.
61 Device hot-removal is functionally equivalent to a modem disconnect
64 event, as defined in termio(7I).
65
67 The usbsprl driver supports the standard set of termio(7I) ioctl
68 calls.
69 Input and output line speeds can be set to the following baud rates:
72 75, 150, 300, 600, 1200, 1800, 2400, 4800, 9600, 19200, 38400, 57600,
73 115200, 230400 or 460800. Input and output line speeds cannot be set
74 independently. For example, when the output speed is set, the input
75 speed is automatically set to the same speed.
76
78 An open() fails under the following conditions:
79 ENXIO The unit being opened does not exist.
81 EBUSY The /dev/cua (dial-out) device is being opened while the
84 /dev/term (dial-in device) is open, or the dial-in device is
85 being opened with a no-delay open while the dial-out device is
86 open.
87 EBUSY The unit has been marked as exclusive-use by another process
90 with a TIOCEXCL ioctl() call.
91 EIO USB device I/O error.
94
97 /kernel/drv/usbsprl
98 32-bit x86 ELF kernel module.
100 /kernel/drv/amd64/usbsprl
103 64-bit x86 ELF kernel module.
105 /kernel/drv/sparcv9/usbsprl
108 64-bit SPARC ELF kernel module.
110 /dev/cua/[0-9]*
113 dial-out tty lines.
115 /dev/term/[0-9]*
118 dial-in tty lines.
120
123 See attributes(5) for descriptions of the following attributes:
124 ┌─────────────────────────────┬──────────────────────────────┐
129 │ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
130 ├─────────────────────────────┼──────────────────────────────┤
131 │Architecture │SPARC, x86, PCI-based systems │
132 ├─────────────────────────────┼──────────────────────────────┤
133 │Availability │SUNWuprl │
134 └─────────────────────────────┴──────────────────────────────┘
135
137 strconf(1), tip(1), uucp(1C), autopush(1M), ioctl(2), open(2),
138 termios(3C), attributes(5), usba(7D), termio(7I), ldterm(7M), ttcom‐
139 pat(7M)
140
142 In addition to being logged, the following messages may appear on the
143 system console. All messages are formatted in the following manner:
144 Warning: <device path> (usbsprl<instance num>): Error Message...
146 Device was disconnected while open. Data may have been lost.
150 The device has been hot-removed or powered off while it was open
152 and a possible data transfer was in progress. The job may be
153 aborted.
154 Device is not identical to the previous one on this port. Please dis‐
157 connect and reconnect.
158 The device was hot-removed while open. A new device was hot-
160 inserted which is not identical to the original device. Please dis‐
161 connect the device and reconnect the original device to the same
162 port.
163 Device has been reconnected, but data may have been lost.
166 The device that was hot-removed from its USB port has been re-
168 inserted again to the same port. It is available for access but
169 data from a previou transfer may be lost.
170 Cannot access <device>. Please reconnect.
173 This device has been disconnected because a device other than the
175 original one has been inserted. The driver informs you of this fact
176 by displaying the name of the original device.
177 The following messages may be logged into the system log. They are for‐
181 matted in the following manner:
182 <device path><usbsprl<instance number>): message...
184 Input overrun.
188 Data was lost.
190SunOS 5.11 23 Nov 2006 usbsprl(7D)