diff options
Diffstat (limited to 'sys/dev')
| -rw-r--r-- | sys/dev/usb/uvscom.c | 37 |
1 files changed, 33 insertions, 4 deletions
diff --git a/sys/dev/usb/uvscom.c b/sys/dev/usb/uvscom.c index 8c225e13a91d..2b012b17d4e5 100644 --- a/sys/dev/usb/uvscom.c +++ b/sys/dev/usb/uvscom.c @@ -34,6 +34,8 @@ * P-in m@ater and various data communication card adapters. */ +#include "opt_uvscom.h" + #include <sys/param.h> #include <sys/systm.h> #include <sys/kernel.h> @@ -69,9 +71,9 @@ #include <dev/usb/ucomvar.h> +SYSCTL_NODE(_hw_usb, OID_AUTO, uvscom, CTLFLAG_RW, 0, "USB uvscom"); #ifdef USB_DEBUG static int uvscomdebug = 0; -SYSCTL_NODE(_hw_usb, OID_AUTO, uvscom, CTLFLAG_RW, 0, "USB uvscom"); SYSCTL_INT(_hw_usb_uvscom, OID_AUTO, debug, CTLFLAG_RW, &uvscomdebug, 0, "uvscom debug level"); @@ -173,8 +175,12 @@ struct uvscom_softc { * These are the maximum number of bytes transferred per frame. * The output buffer size cannot be increased due to the size encoding. */ -#define UVSCOMIBUFSIZE 512 -#define UVSCOMOBUFSIZE 64 +#define UVSCOMIBUFSIZE 512 +#define UVSCOMOBUFSIZE 64 + +#ifndef UVSCOM_DEFAULT_OPKTSIZE +#define UVSCOM_DEFAULT_OPKTSIZE 8 +#endif Static usbd_status uvscom_shutdown(struct uvscom_softc *); Static usbd_status uvscom_reset(struct uvscom_softc *); @@ -242,6 +248,29 @@ MODULE_DEPEND(uvscom, usb, 1, 1, 1); MODULE_DEPEND(uvscom, ucom, UCOM_MINVER, UCOM_PREFVER, UCOM_MAXVER); MODULE_VERSION(uvscom, UVSCOM_MODVER); +static int uvscomobufsiz = UVSCOM_DEFAULT_OPKTSIZE; + +static int +sysctl_hw_usb_uvscom_opktsize(SYSCTL_HANDLER_ARGS) +{ + int err, val; + + val = uvscomobufsiz; + err = sysctl_handle_int(oidp, &val, sizeof(val), req); + if (err != 0 || req->newptr == NULL) + return (err); + if (0 < val && val <= UVSCOMOBUFSIZE) + uvscomobufsiz = val; + else + err = EINVAL; + + return (err); +} + +SYSCTL_PROC(_hw_usb_uvscom, OID_AUTO, opktsize, CTLTYPE_INT | CTLFLAG_RW, + 0, sizeof(int), sysctl_hw_usb_uvscom_opktsize, + "I", "uvscom output packet size"); + USB_MATCH(uvscom) { USB_MATCH_START(uvscom, uaa); @@ -364,7 +393,7 @@ USB_ATTACH(uvscom) ucom->sc_portno = UCOM_UNK_PORTNO; /* bulkin, bulkout set above */ ucom->sc_ibufsize = UVSCOMIBUFSIZE; - ucom->sc_obufsize = UVSCOMOBUFSIZE; + ucom->sc_obufsize = uvscomobufsiz; ucom->sc_ibufsizepad = UVSCOMIBUFSIZE; ucom->sc_opkthdrlen = 0; ucom->sc_callback = &uvscom_callback; |