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Fix a bunch of problems with USB.

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This commit is contained in:
Aleš Nesrsta 2010-05-31 14:11:41 +02:00 • committed by Vladimir 'phcoder' Serbinenko
parent 7fd08f56ae
commit 778ff32476
10 changed files with 637 additions and 167 deletions
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12
bus/usb/usb.c
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@ -107,7 +107,7 @@ grub_usb_set_configuration (grub_usb_device_t dev, int configuration)
{
int i;
for (i = 0; i < 16; i++)
for (i = 0; i < 256; i++)
dev->toggle[i] = 0;
return grub_usb_control_msg (dev, (GRUB_USB_REQTYPE_OUT
@ -163,6 +163,16 @@ grub_usb_device_initialize (grub_usb_device_t dev)
grub_usb_err_t err;
int i;
/* First we have to read first 8 bytes only and determine
* max. size of packet */
dev->descdev.maxsize0 = 0; /* invalidating, for safety only, can be removed if it is sure it is zero here */
err = grub_usb_get_descriptor (dev, GRUB_USB_DESCRIPTOR_DEVICE,
0, 8, (char *) &dev->descdev);
if (err)
return err;
/* Now we have valid value in dev->descdev.maxsize0,
* so we can read whole device descriptor */
err = grub_usb_get_descriptor (dev, GRUB_USB_DESCRIPTOR_DEVICE,
0, sizeof (struct grub_usb_desc_device),
(char *) &dev->descdev);