^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) ===============================
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) Linux USB Printer Gadget Driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) ===============================
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) 06/04/2007
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) Copyright (C) 2007 Craig W. Nadler <craig@nadler.us>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) General
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) =======
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) This driver may be used if you are writing printer firmware using Linux as
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) the embedded OS. This driver has nothing to do with using a printer with
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) your Linux host system.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) You will need a USB device controller and a Linux driver for it that accepts
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) a gadget / "device class" driver using the Linux USB Gadget API. After the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) USB device controller driver is loaded then load the printer gadget driver.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) This will present a printer interface to the USB Host that your USB Device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) port is connected to.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) This driver is structured for printer firmware that runs in user mode. The
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) user mode printer firmware will read and write data from the kernel mode
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) printer gadget driver using a device file. The printer returns a printer status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) byte when the USB HOST sends a device request to get the printer status. The
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) user space firmware can read or write this status byte using a device file
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) /dev/g_printer . Both blocking and non-blocking read/write calls are supported.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) Howto Use This Driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) =====================
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) To load the USB device controller driver and the printer gadget driver. The
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) following example uses the Netchip 2280 USB device controller driver::
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) modprobe net2280
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) modprobe g_printer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) The follow command line parameter can be used when loading the printer gadget
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) (ex: modprobe g_printer idVendor=0x0525 idProduct=0xa4a8 ):
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) idVendor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) This is the Vendor ID used in the device descriptor. The default is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) the Netchip vendor id 0x0525. YOU MUST CHANGE TO YOUR OWN VENDOR ID
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) BEFORE RELEASING A PRODUCT. If you plan to release a product and don't
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) already have a Vendor ID please see www.usb.org for details on how to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) get one.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) idProduct
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) This is the Product ID used in the device descriptor. The default
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) is 0xa4a8, you should change this to an ID that's not used by any of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) your other USB products if you have any. It would be a good idea to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) start numbering your products starting with say 0x0001.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) bcdDevice
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) This is the version number of your product. It would be a good idea
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) to put your firmware version here.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) iManufacturer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) A string containing the name of the Vendor.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) iProduct
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) A string containing the Product Name.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) iSerialNum
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) A string containing the Serial Number. This should be changed for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) each unit of your product.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) iPNPstring
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) The PNP ID string used for this printer. You will want to set
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) either on the command line or hard code the PNP ID string used for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) your printer product.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) qlen
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) The number of 8k buffers to use per endpoint. The default is 10, you
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) should tune this for your product. You may also want to tune the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) size of each buffer for your product.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) Using The Example Code
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) ======================
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) This example code talks to stdout, instead of a print engine.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) To compile the test code below:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) 1) save it to a file called prn_example.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) 2) compile the code with the follow command::
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) gcc prn_example.c -o prn_example
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) To read printer data from the host to stdout::
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) # prn_example -read_data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) To write printer data from a file (data_file) to the host::
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) # cat data_file | prn_example -write_data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) To get the current printer status for the gadget driver:::
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) # prn_example -get_status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) Printer status is:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) Printer is NOT Selected
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) Paper is Out
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) Printer OK
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) To set printer to Selected/On-line::
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) # prn_example -selected
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) To set printer to Not Selected/Off-line::
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) # prn_example -not_selected
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) To set paper status to paper out::
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) # prn_example -paper_out
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) To set paper status to paper loaded::
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) # prn_example -paper_loaded
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) To set error status to printer OK::
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) # prn_example -no_error
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) To set error status to ERROR::
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) # prn_example -error
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) Example Code
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) ============
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) ::
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) #include <stdio.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) #include <stdlib.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) #include <fcntl.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) #include <linux/poll.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) #include <sys/ioctl.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) #include <linux/usb/g_printer.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) #define PRINTER_FILE "/dev/g_printer"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) #define BUF_SIZE 512
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) * 'usage()' - Show program usage.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) usage(const char *option) /* I - Option string or NULL */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) if (option) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) fprintf(stderr,"prn_example: Unknown option \"%s\"!\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) option);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) fputs("\n", stderr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) fputs("Usage: prn_example -[options]\n", stderr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) fputs("Options:\n", stderr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) fputs("\n", stderr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) fputs("-get_status Get the current printer status.\n", stderr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) fputs("-selected Set the selected status to selected.\n", stderr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) fputs("-not_selected Set the selected status to NOT selected.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) stderr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) fputs("-error Set the error status to error.\n", stderr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) fputs("-no_error Set the error status to NO error.\n", stderr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) fputs("-paper_out Set the paper status to paper out.\n", stderr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) fputs("-paper_loaded Set the paper status to paper loaded.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) stderr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) fputs("-read_data Read printer data from driver.\n", stderr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) fputs("-write_data Write printer sata to driver.\n", stderr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) fputs("-NB_read_data (Non-Blocking) Read printer data from driver.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) stderr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) fputs("\n\n", stderr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) exit(1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) read_printer_data()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) struct pollfd fd[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) /* Open device file for printer gadget. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) fd[0].fd = open(PRINTER_FILE, O_RDWR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) if (fd[0].fd < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) printf("Error %d opening %s\n", fd[0].fd, PRINTER_FILE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) close(fd[0].fd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) return(-1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) fd[0].events = POLLIN | POLLRDNORM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) while (1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) static char buf[BUF_SIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) int bytes_read;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) int retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) /* Wait for up to 1 second for data. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) retval = poll(fd, 1, 1000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) if (retval && (fd[0].revents & POLLRDNORM)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) /* Read data from printer gadget driver. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) bytes_read = read(fd[0].fd, buf, BUF_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) if (bytes_read < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) printf("Error %d reading from %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) fd[0].fd, PRINTER_FILE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) close(fd[0].fd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) return(-1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) } else if (bytes_read > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) /* Write data to standard OUTPUT (stdout). */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) fwrite(buf, 1, bytes_read, stdout);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) fflush(stdout);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) /* Close the device file. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) close(fd[0].fd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) write_printer_data()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) struct pollfd fd[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) /* Open device file for printer gadget. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) fd[0].fd = open (PRINTER_FILE, O_RDWR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) if (fd[0].fd < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) printf("Error %d opening %s\n", fd[0].fd, PRINTER_FILE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) close(fd[0].fd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) return(-1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) fd[0].events = POLLOUT | POLLWRNORM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) while (1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) int retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) static char buf[BUF_SIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) /* Read data from standard INPUT (stdin). */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) int bytes_read = fread(buf, 1, BUF_SIZE, stdin);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) if (!bytes_read) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) while (bytes_read) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) /* Wait for up to 1 second to sent data. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) retval = poll(fd, 1, 1000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) /* Write data to printer gadget driver. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) if (retval && (fd[0].revents & POLLWRNORM)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) retval = write(fd[0].fd, buf, bytes_read);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) if (retval < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) printf("Error %d writing to %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) fd[0].fd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) PRINTER_FILE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) close(fd[0].fd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) return(-1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) bytes_read -= retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) /* Wait until the data has been sent. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) fsync(fd[0].fd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) /* Close the device file. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) close(fd[0].fd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) read_NB_printer_data()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) int fd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) static char buf[BUF_SIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) int bytes_read;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) /* Open device file for printer gadget. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) fd = open(PRINTER_FILE, O_RDWR|O_NONBLOCK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) if (fd < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) printf("Error %d opening %s\n", fd, PRINTER_FILE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) close(fd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) return(-1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) while (1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) /* Read data from printer gadget driver. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) bytes_read = read(fd, buf, BUF_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) if (bytes_read <= 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) /* Write data to standard OUTPUT (stdout). */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) fwrite(buf, 1, bytes_read, stdout);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) fflush(stdout);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) /* Close the device file. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) close(fd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) get_printer_status()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) int retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) int fd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) /* Open device file for printer gadget. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) fd = open(PRINTER_FILE, O_RDWR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) if (fd < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) printf("Error %d opening %s\n", fd, PRINTER_FILE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) close(fd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) return(-1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) /* Make the IOCTL call. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) retval = ioctl(fd, GADGET_GET_PRINTER_STATUS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) if (retval < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) fprintf(stderr, "ERROR: Failed to set printer status\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) return(-1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) /* Close the device file. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) close(fd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) return(retval);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) set_printer_status(unsigned char buf, int clear_printer_status_bit)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) int retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) int fd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) retval = get_printer_status();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) if (retval < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) fprintf(stderr, "ERROR: Failed to get printer status\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) return(-1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) /* Open device file for printer gadget. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) fd = open(PRINTER_FILE, O_RDWR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) if (fd < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) printf("Error %d opening %s\n", fd, PRINTER_FILE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) close(fd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) return(-1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) if (clear_printer_status_bit) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) retval &= ~buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) retval |= buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) /* Make the IOCTL call. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) if (ioctl(fd, GADGET_SET_PRINTER_STATUS, (unsigned char)retval)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) fprintf(stderr, "ERROR: Failed to set printer status\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) return(-1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) /* Close the device file. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) close(fd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) display_printer_status()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) char printer_status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) printer_status = get_printer_status();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) if (printer_status < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) fprintf(stderr, "ERROR: Failed to get printer status\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) return(-1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) printf("Printer status is:\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) if (printer_status & PRINTER_SELECTED) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) printf(" Printer is Selected\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) printf(" Printer is NOT Selected\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) if (printer_status & PRINTER_PAPER_EMPTY) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) printf(" Paper is Out\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) printf(" Paper is Loaded\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) if (printer_status & PRINTER_NOT_ERROR) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) printf(" Printer OK\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) printf(" Printer ERROR\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) return(0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) main(int argc, char *argv[])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) int i; /* Looping var */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) int retval = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) /* No Args */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) if (argc == 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) usage(0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) exit(0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) for (i = 1; i < argc && !retval; i ++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) if (argv[i][0] != '-') {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) if (!strcmp(argv[i], "-get_status")) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) if (display_printer_status()) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) retval = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) } else if (!strcmp(argv[i], "-paper_loaded")) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) if (set_printer_status(PRINTER_PAPER_EMPTY, 1)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) retval = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) } else if (!strcmp(argv[i], "-paper_out")) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) if (set_printer_status(PRINTER_PAPER_EMPTY, 0)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) retval = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) } else if (!strcmp(argv[i], "-selected")) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) if (set_printer_status(PRINTER_SELECTED, 0)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) retval = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) } else if (!strcmp(argv[i], "-not_selected")) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) if (set_printer_status(PRINTER_SELECTED, 1)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) retval = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) } else if (!strcmp(argv[i], "-error")) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) if (set_printer_status(PRINTER_NOT_ERROR, 1)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) retval = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) } else if (!strcmp(argv[i], "-no_error")) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) if (set_printer_status(PRINTER_NOT_ERROR, 0)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) retval = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) } else if (!strcmp(argv[i], "-read_data")) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) if (read_printer_data()) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) retval = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) } else if (!strcmp(argv[i], "-write_data")) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) if (write_printer_data()) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) retval = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) } else if (!strcmp(argv[i], "-NB_read_data")) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) if (read_NB_printer_data()) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) retval = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) usage(argv[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) retval = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) exit(retval);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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