diff options
Diffstat (limited to 'drivers/usb/misc/usbtest.c')
| -rw-r--r-- | drivers/usb/misc/usbtest.c | 28 |
1 files changed, 21 insertions, 7 deletions
diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c index 055b84adedac..aa28ac8c7607 100644 --- a/drivers/usb/misc/usbtest.c +++ b/drivers/usb/misc/usbtest.c @@ -13,6 +13,12 @@ /*-------------------------------------------------------------------------*/ +static int override_alt = -1; +module_param_named(alt, override_alt, int, 0644); +MODULE_PARM_DESC(alt, ">= 0 to override altsetting selection"); + +/*-------------------------------------------------------------------------*/ + /* FIXME make these public somewhere; usbdevfs.h? */ struct usbtest_param { /* inputs */ @@ -103,6 +109,10 @@ get_endpoints(struct usbtest_dev *dev, struct usb_interface *intf) iso_in = iso_out = NULL; alt = intf->altsetting + tmp; + if (override_alt >= 0 && + override_alt != alt->desc.bAlternateSetting) + continue; + /* take the first altsetting with in-bulk + out-bulk; * ignore other endpoints and altsettings. */ @@ -144,6 +154,7 @@ try_iso: found: udev = testdev_to_usbdev(dev); + dev->info->alt = alt->desc.bAlternateSetting; if (alt->desc.bAlternateSetting != 0) { tmp = usb_set_interface(udev, alt->desc.bInterfaceNumber, @@ -423,6 +434,9 @@ alloc_sglist(int nents, int max, int vary) unsigned i; unsigned size = max; + if (max == 0) + return NULL; + sg = kmalloc_array(nents, sizeof *sg, GFP_KERNEL); if (!sg) return NULL; @@ -733,9 +747,9 @@ static int ch9_postconfig(struct usbtest_dev *dev) /* [9.4.5] get_status always works */ retval = usb_get_status(udev, USB_RECIP_DEVICE, 0, dev->buf); - if (retval != 2) { + if (retval) { dev_err(&iface->dev, "get dev status --> %d\n", retval); - return (retval < 0) ? retval : -EDOM; + return retval; } /* FIXME configuration.bmAttributes says if we could try to set/clear @@ -744,9 +758,9 @@ static int ch9_postconfig(struct usbtest_dev *dev) retval = usb_get_status(udev, USB_RECIP_INTERFACE, iface->altsetting[0].desc.bInterfaceNumber, dev->buf); - if (retval != 2) { + if (retval) { dev_err(&iface->dev, "get interface status --> %d\n", retval); - return (retval < 0) ? retval : -EDOM; + return retval; } /* FIXME get status for each endpoint in the interface */ @@ -1337,7 +1351,6 @@ static int verify_halted(struct usbtest_dev *tdev, int ep, struct urb *urb) ep, retval); return retval; } - le16_to_cpus(&status); if (status != 1) { ERROR(tdev, "ep %02x bogus status: %04x != 1\n", ep, status); return -EINVAL; @@ -2176,7 +2189,7 @@ usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf) if (dev->out_pipe == 0 || !param->length || param->sglen < 4) break; retval = 0; - dev_info(&intf->dev, "TEST 17: unlink from %d queues of " + dev_info(&intf->dev, "TEST 24: unlink from %d queues of " "%d %d-byte writes\n", param->iterations, param->sglen, param->length); for (i = param->iterations; retval == 0 && i > 0; --i) { @@ -2277,7 +2290,7 @@ usbtest_probe(struct usb_interface *intf, const struct usb_device_id *id) wtest = " intr-out"; } } else { - if (info->autoconf) { + if (override_alt >= 0 || info->autoconf) { int status; status = get_endpoints(dev, intf); @@ -2386,6 +2399,7 @@ static struct usbtest_info gz_info = { .name = "Linux gadget zero", .autoconf = 1, .ctrl_out = 1, + .iso = 1, .alt = 0, }; |