FreeCalypso > hg > fc-usbser-tools

annotate libuwrap/open_close.c @ 61:7941a5e06d6a

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
cp2102/baudtab-{gsm,std}: two important baud rate tables of interest
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 11 Sep 2023 21:11:41 +0000
parents 80e521d6609c
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
12
80e521d6609c libuwrap: implement USB device open and close
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /*
80e521d6609c libuwrap: implement USB device open and close
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 * Here we implement functions for opening and closing the libusb device
80e521d6609c libuwrap: implement USB device open and close
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3 * we have located.
80e521d6609c libuwrap: implement USB device open and close
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4 */
80e521d6609c libuwrap: implement USB device open and close
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5
80e521d6609c libuwrap: implement USB device open and close
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6 #include <stdio.h>
80e521d6609c libuwrap: implement USB device open and close
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 #include <stdlib.h>
80e521d6609c libuwrap: implement USB device open and close
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 #include <usb.h>
80e521d6609c libuwrap: implement USB device open and close
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 #include "open_close.h"
80e521d6609c libuwrap: implement USB device open and close
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10
80e521d6609c libuwrap: implement USB device open and close
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 usb_dev_handle *usbwrap_open_dev(struct usb_device *dev, int detach)
80e521d6609c libuwrap: implement USB device open and close
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12 {
80e521d6609c libuwrap: implement USB device open and close
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 usb_dev_handle *usbh;
80e521d6609c libuwrap: implement USB device open and close
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14
80e521d6609c libuwrap: implement USB device open and close
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 usbh = usb_open(dev);
80e521d6609c libuwrap: implement USB device open and close
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16 if (!usbh) {
80e521d6609c libuwrap: implement USB device open and close
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17 fprintf(stderr, "error: usb_open() failed\n");
80e521d6609c libuwrap: implement USB device open and close
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18 exit(1);
80e521d6609c libuwrap: implement USB device open and close
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 }
80e521d6609c libuwrap: implement USB device open and close
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20 if (detach)
80e521d6609c libuwrap: implement USB device open and close
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21 usb_detach_kernel_driver_np(usbh, 0);
80e521d6609c libuwrap: implement USB device open and close
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 if (usb_claim_interface(usbh, 0) != 0) {
80e521d6609c libuwrap: implement USB device open and close
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23 fprintf(stderr, "error: usb_claim_interface() failed\n");
80e521d6609c libuwrap: implement USB device open and close
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24 exit(1);
80e521d6609c libuwrap: implement USB device open and close
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25 }
80e521d6609c libuwrap: implement USB device open and close
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 return usbh;
80e521d6609c libuwrap: implement USB device open and close
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27 }
80e521d6609c libuwrap: implement USB device open and close
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28
80e521d6609c libuwrap: implement USB device open and close
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29 void usbwrap_close_dev(usb_dev_handle *usbh)
80e521d6609c libuwrap: implement USB device open and close
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
30 {
80e521d6609c libuwrap: implement USB device open and close
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
31 usb_release_interface(usbh, 0);
80e521d6609c libuwrap: implement USB device open and close
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
32 usb_close(usbh);
80e521d6609c libuwrap: implement USB device open and close
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
33 }